Related Applications
[0001] This application claims priority to
U.S. provisional patent application no. 60/480,984, filed June 23, 2003, identified by Attorney Docket No. NBI-152-1,
U.S. provisional patent application no. 60/512,116, filed October 17, 2003, identified by Attorney Docket No. NBI-152-2, both entitled
Pharmaceutical Formulations of Amyloid-Inhibiting Compounds, and U.S. application 10/XXX,XXX, filed June 18, 2004, identified by Attorney Docket
No. NBI-152, entitled
Pharmaceutical Formulations of Amyloid-Inhibiting Compounds.
[0002] This application is related to
U.S. provisional application no. 60/436,379, filed December 24, 2002, identified by Attorney Docket No. NBI-154-1, entitled
Combination Therapy for the Treatment of Alzheimer's Disease,
U.S. provisional application 60/482,214, filed June 23 2003, identified by Attorney Docket No. NBI-154-2,
U.S. utility patent application no. 10/746,138, filed December 24, 2003, identified by Attorney Docket No. NBI-154, and International patent application
no.
PCT/CA2003/00201 identified by NBI-154PC entitled
Therapeutic Formulations for the Treatment of Beta-Amyloid Related Diseases. This application is related to
U.S. provisional patent application no. 60/482,058, filed June 23, 2003, identified by Attorney Docket No. NBI-156-1,
U.S. provisional patent application no. 60/512,135, filed October 17, 2003, identified by Attorney Docket No. NBI-156-2, both entitled
Synthetic Process for Preparing Compounds for Treating Amyloidosis, and U.S. application 10/XXX,XXX, filed June 18, 2004, identified by Attorney Docket
No. NBI-156, entitled
Improved Pharmaceutical Drug Candidates and Method for Preparation Thereof. This application is also related to
US provisional patent application no. 60/480,918, filed June 23, 2003, identified by Attorney Docket No. NBI-149-1,
U.S. provisional application 60/512,017, filed October 17, 2003, identified by Attorney Docket No. NBI-149-2, and US patent application no. 10/XXX,XXX,
filed June 18, 2004, identified by Attorney Docket No. NBI-149 entitled
Methods for Treating Protein Aggregation Disorders. This application is also related to
U.S. provisional patent application no. 60/480,906, filed June 23, 2003, identified by Attorney Docket No. NBI-162-1,
U.S. provisional patent application no. 60/512,047, filed October 17, 2003, identified by Attorney Docket No. NBI-162-2, U.S. application 10/XXX,XXX, filed
June 18, 2004, identified by Attorney Docket No. NBI-162A and U.S. application 10/XXX,XXX,
filed June 18, 2004, identified by Attorney Docket No. NBI-162B, all entitled
Methods and Compositions for Treating Amyloid-Related Diseases; and
U.S. provisional patent application no. 60/480,928, also filed 23 June 2003, identified by Attorney Docket No. NBI-163-1,
U.S. provisional patent application no. 60/512,018, filed October 17, 2003, identified by Attorney Docket No. NBI-163-2 and U.S. application 10/XXX,XXX, filed
June 18, 2004, identified by Attorney Docket No. NBI-163, all entitled
Methods and Compositions for the Treatment of Amyloid- and Epileptogenesis-Associated
Diseases; This application is also related to
Method for Treating Amyloidosis,
U.S. patent application no. 08/463,548, now
U.S. Pat. No. 5,972,328, identified by Attorney Docket No. NCI-003CP4.
[0003] The entire contents of each of the foregoing patent applications and patents are
expressly incorporated by reference in their entirety including, without limitation,
the specification, claims, and abstract, as well as any figures, tables, or drawings
thereof.
Background of the Invention
[0004] Amyloidosis refers to a pathological condition characterized by the presence of amyloid
fibrils. Amyloid is a generic term referring to a group of diverse but specific protein
deposits (intracellular or extracellular) which are seen in a number of different
diseases. Though diverse in their occurrence, all amyloid deposits have common morphologic
properties, stain with specific dyes (
e.
g., Congo red), and have a characteristic red-green birefringent appearance in polarized
light after staining. They also share common ultrastructural features and common X-ray
diffraction and infrared spectra.
[0005] Amyloid-related diseases can either be restricted to one organ or spread to several
organs. The first instance is referred to as "localized amyloidosis" while the second
is referred to as "systemic amyloidosis."
[0006] Some amyloid diseases can be idiopathic, but most of these diseases appear as a complication
of a previously existing disorder. For example, primary amyloidosis (AL amyloid) can
appear without any other pathology or can follow plasma cell dyscrasia or multiple
myeloma.
[0007] Secondary amyloidosis is usually seen associated with chronic infection (such as
tuberculosis) or chronic inflammation (such as rheumatoid arthritis). A familial form
of secondary amyloidosis is also seen in other types of familial amyloidosis, e.g.,
Familial Mediterranean Fever (FMF). This familial type of amyloidosis is genetically
inherited and is found in specific population groups. In both primary and secondary
amyloidosis, deposits are found in several organs and are thus considered systemic
amyloid diseases.
[0008] "Localized amyloidoses" are those that tend to involve a single organ system. Different
amyloids are also characterized by the type of protein present in the deposit. For
example, neurodegenerative diseases such as scrapie, bovine spongiform encephalitis,
Creutzfeldt-Jakob disease, and the like are characterized by the appearance and accumulation
of a protease-resistant form of a prion protein (referred to as AScr or PrP-27) in
the central nervous system. Similarly, Alzheimer's disease, another neurodegenerative
disorder, is characterized by neuritic plaques and neurofibrillary tangles. In this
case, the amyloid plaques found in the parenchyma and the blood vessel is formed by
the deposition of fibrillar Aβ amyloid protein. Other diseases such as adult-onset
diabetes (type II diabetes) are characterized by the localized accumulation of amyloid
fibrils in the pancreas.
[0009] Once these amyloids have formed, there is no known, widely accepted therapy or treatment
which significantly dissolves amyloid deposits
in situ, prevents further amyloid deposition or prevents the initiation of amyloid deposition.
[0010] Each amyloidogenic protein has the ability to undergo a conformational change and
to organize into β-sheets and form insoluble fibrils which may be deposited extracellularly
or intracellularly. Each amyloidogenic protein, although different in amino acid sequence,
has the same property of forming fibrils and binding to other elements such as proteoglycan,
amyloid P and complement component. Moreover, each amyloidogenic protein has amino
acid sequences which, although different, show similarities such as regions with the
ability to bind to the glycosaminoglycan (GAG) portion of proteoglycan (referred to
as the GAG binding site) as well as other regions which promote β-sheet formation.
Proteoglycans are macromolecules of various sizes and structures that are districuted
almost everywhere in the body. They can be found in the intracellular compartment,
on the surface of cells, and as part of the extracellular matrix. The basic structure
of all proteoglycans is comprised of a core protein and at least one, but frequently
more, polysaccharide chains (GAGs) attached to the core protein. Many different GAGs
have been discovered including chondroitin sulfate, dermatan sulfate, keratan sulfate,
heparin, and hyaluronan.
[0011] In specific cases, amyloid fibrils, once deposited, can become toxic to the surrounding
cells. For example, the Aβ fibrils organized as senile plaques have been shown to
be associated with dead neuronal cells, dystrophic neurites, astrocytosis, and microgliosis
in patients with Alzheimer's disease. When tested
in vitro, oligomeric (soluble) as well as fibrillar Aβ peptide was shown to be capable of triggering
an activation process of microglia (brain macrophages), which would explain the presence
of microgliosis and brain inflammation found in the brain of patients with Alzheimer's
disease. Both oligomeric and fibrillar Aβ peptide can also induce neuronal cell death
in vitro.
See,
e.
g.,
MP Lambert, et al., Proc. Natl. Acad. Sci. USA 95, 6448-53 (1998).
[0012] In another type of amyloidosis seen in patients with type II diabetes, the amyloidogenic
protein IAPP, when organized in oligomeric forms or in fibrils, has been shown to
induce β-islet cell toxicity
in vitro. Hence, appearance of IAPP fibrils in the pancreas of type II diabetic patients contributes
to the loss of the β islet cells (Langerhans) and organ dysfunction which can lead
to insulinemia.
[0013] Another type of amyloidosis is related to β
2 microglobulin and is found in long-term hemodialysis patients. Patients undergoing
long term hemodialysis will develop β
2-microglobulin fibrils in the carpal tunnel and in the collagen rich tissues in several
joints. This causes severe pains, joint stiffness and swelling.
[0014] Amyloidosis is also characteristic of Alzheimer's disease. Alzheimer's disease is
a devastating disease of the brain that results in progressive memory loss leading
to dementia, physical disability, and death over a relatively long period of time.
With the aging populations in developed countries, the number of Alzheimer's patients
is reaching epidemic proportions.
[0015] People suffering from Alzheimer's disease develop a progressive dementia in adulthood,
accompanied by three main structural changes in the brain: diffuse loss of neurons
in multiple parts of the brain; accumulation of intracellular protein deposits termed
neurofibrillary tangles; and accumulation of extracellular protein deposits termed
amyloid or senile plaques, surrounded by misshapen nerve terminals (dystrophic neurites)
and activated microglia (microgliosis and astrocytosis). A main constituent of these
amyloid plaques is the amyloid-β peptide (Aβ), a 39-43 amino-acid protein that is
produced through cleavage of the β-amyloid precursor protein (APP). Extensive research
has been conducted on the relevance of Aβ deposits in Alzheimer's disease,
see,
e.
g.,
Selkoe, Trends in Cell Biology 8, 447-453 (1998). Aβ naturally arises from the metabolic processing of the amyloid precursor protein
("APP") in the endoplasmic reticulum ("ER"), the Golgi apparatus, or the endosomal-lysosomal
pathway, and most is normally secreted as a 40 ("Aβ1-40") or 42 ("Aβ1-42") amino acid
peptide (
Selkoe, Annu. Rev. Cell Biol. 10, 373-403 (1994)). A role for Aβ as a primary cause for Alzheimer's disease is supported by the presence
of extracellular Aβ deposits in senile plaques of Alzheimer's disease, the increased
production of Aβ in cells harboring mutant Alzheimer's disease associated genes,
e.
g., amyloid precursor protein, presenilin I and presenilin II; and the toxicity of
extracellular soluble (oligomeric) or fibrillar Aβ to cells in culture.
See,
e.
g.,
Gervais, Eur. Biopharm. Review, 40-42 (Autumn 2001);
May, DDT 6, 459-62 (2001). Although symptomatic treatments exist for Alzheimer's disease, this disease cannot
be prevented or cured at this time.
[0016] Alzheimer's disease is characterized by diffuse and neuritic plaques, cerebral angiopathy,
and neurofibrillary tangles. Plaque and blood vessel amyloid is believed to be formed
by the deposition of insoluble Aβ amyloid protein, which may be described as diffuse
or fibrillary. Both soluble oligomeric Aβ and fibrillar Aβ are also believed to be
neurotoxic and inflammatory.
[0017] Another type of amyloidosis is cerebral amyloid angiopathy (CAA). CAA is the specific
deposition of amyloid β fibrils in the walls of leptomingeal and cortical arteries,
arterioles and veins. It is commonly associated with Alzheimer's disease, Down's syndrome
and normal aging, as well as with a variety of familial conditions related to stroke
or dementia (
see Frangione et al., Amyloid: J. Protein Folding Disord. 8, Suppl. 1, 36-42 (2001)).
[0018] Presently available therapies for treatment of β-anlyloid diseases are almost entirely
symptomatic, providing only temporary or partial clinical benefit. Although some pharmaceutical
agents have been described that offer partial symptomatic relief, no comprehensive
pharmacological therapy is currently available for the prevention or treatment of,
for example, Alzheimer's disease.
Summary of the Invention
[0019] This invention provides methods, compositions, and formulations that are useful in
the treatment of amyloidosis. The methods of the invention involve administering to
a subject a therapeutic composition or formulation that inhibits amyloid deposition.
Accordingly, the compositions and methods of the invention are useful for inhibiting
amyloidosis disorders in which amyloid deposition occurs. The methods of the invention
may be used therapeutically to treat amyloidosis or may be used prophylactically in
a subject susceptible to amyloidosis.
[0020] In one aspect, the methods of the present invention are based, at least in part,
on inhibiting an interaction between an amyloidogenic protein and a constituent of
a basement membrane to inhibit amyloid deposition. In particular embodiments, the
constituent of the basement membrane is a glycoprotein or proteoglycan, preferably
agrin, perlecan, or heparan sulfate proteoglycan. A therapeutic compound used in the
method of the invention can interfere with binding of a basement membrane constituent
to a target binding site on an amyloidogenic protein, thereby inhibiting amyloid deposition.
In other embodiments, a therapeutic compound used in the method of the invention can
enhance clearance of amyloid β from the brain, thereby inhibiting amyloid deposition.
In other embodiments, a therapeutic compound used in the method of the invention can
inhibit neurodegeneration or cellular toxicity induced by amyloid (
e.
g., by soluble or insoluble amyloid,
e.
g., fibrils, by amyloid deposition and/or by amyloid-β, as described herein).
[0021] In preferred aspects, the invention relates to the use of alkylsulfonic acids in
the treatment of amyloid-related diseases.
[0022] Accordingly, in one aspect, the invention is directed to a method for inhibiting
amyloid deposition in a subject comprising administering to the subject an effective
amount of a therapeutic formulation comprising a therapeutic compound formulated to
significantly reduce or prevent gastrointestinal intolerance, such that amyloid deposition
is inhibited.
[0023] In another aspect, the invention pertains to a method of treating or preventing an
amyloid-related disease,
e.
g., Aβ-related disease, in a subject, comprising administering to a subject a therapeutic
amount of a therapeutic formulation comprising a therapeutic compound formulated to
significantly reduce or prevent gastrointestinal intolerance, such that the amyloid-related
disease is treated or prevented.
[0024] In an additional aspect, the invention is a method for inhibiting amyloid deposition
in a subject comprising administering to the subject an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance, such that the therapeutic compound inhibits
an interaction between an amyloidogenic protein and a constituent of a basement membrane
to inhibit amyloid deposition.
[0025] Another aspect of the invention involves a method for inhibiting amyloid deposition
in a subject comprising administering to the subject an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance, such that the therapeutic compound inhibits
neurodegeneration or cellular toxicity induced by amyloid (
e.
g., by soluble or insoluble amyloid,
e.
g., fibrils, by amyloid deposition and/or by amyloid-β, as described herein).
[0026] In another aspect, the invention is directed to a method for inhibiting amyloid deposition
in a subject comprising administering to the subject an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance, such that the therapeutic compound enhances
clearance of amyloid β from the brain.
[0027] In yet another aspect, the invention pertains to a method for inhibiting amyloid
deposition in a subject comprising orally administering to the subject an effective
amount of a therapeutic formulation comprising a therapeutic compound formulated to
significantly reduce or prevent gastrointestinal intolerance.
[0028] An additional aspect of the invention is a pharmaceutical composition for inhibiting
amyloid deposition in a subject comprising a therapeutic formulation comprising a
therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance, in an amount sufficient to inhibit amyloid deposition in a subject, and
a pharmaceutically acceptable vehicle.
[0029] In another aspect, the invention is directed to a pharmaceutical composition for
treating amyloidosis comprising a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
in an amount sufficient to inhibit amyloid deposition in a subject, and a pharmaceutically
acceptable vehicle.
[0030] In another aspect, the present invention pertains to a pharmaceutical composition
for treating or preventing an amyloid-related disease,
e.
g., Aβ-related disease, comprising a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
in an amount sufficient to prevent or treat an amyloid-related disease in a subject,
and a pharmaceutically acceptable vehicle.
[0031] In yet another aspect, the invention pertains to a method for reducing amyloid deposits
in a subject having amyloid deposits, the method comprising administering to the subject
an effective amount of a therapeutic formulation comprising a therapeutic compound
formulated to significantly reduce or prevent gastrointestinal intolerance, such that
amyloid deposits are reduced in the subject.
[0032] Another aspect of the invention is directed to a method for inhibiting the binding
of a chemokine to a glycosaminoglycan in a subject comprising administering to the
subject a therapeutic formulation comprising a therapeutic compound formulated to
significantly reduce or prevent gastrointestinal intolerance, such that the binding
of a chemokine to a glycosaminoglycan is inhibited.
[0033] Yet another aspect of the invention is directed to a method for modulating interaction
between a bacterium and a glycosaminoglycan in a human comprising administering to
the human an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance.
[0034] In an additional aspect, the invention pertains to a method for treating a bacterial
infection in a human comprising administering to the human an effective amount of
a therapeutic formulation comprising a therapeutic compound formulated to significantly
reduce or prevent gastrointestinal intolerance.
[0035] In another aspect, the invention is a method for modulating interaction between a
virus and a glycosaminoglycan in a subject comprising administering to the subject
an effective amount of a therapeutic formulation comprising a therapeutic compound
formulated to significantly reduce or prevent gastrointestinal intolerance.
[0036] Another aspect of the invention is a method for treating a viral infection in a subject
comprising administering to the subject a therapeutic formulation comprising an effective
amount of a therapeutic formulation comprising a therapeutic compound formulated to
significantly reduce or prevent gastrointestinal intolerance.
[0037] Yet another aspect of the invention is directed to a method of preventing, treating
or inhibiting cerebral amyloid angiopathy in a subject, comprising administering an
effective amount of a therapeutic formulation comprising a therapeutic compound formulated
to significantly reduce or prevent gastrointestinal intolerance.
[0038] In an additional aspect, the invention pertains to a method of preventing, treating
or inhibiting cerebral amyloid angiopathy, comprising contacting a blood vessel wall
cell with a therapeutic formulation comprising a therapeutic compound formulated to
significantly reduce or prevent gastrointestinal intolerance, such that cerebral amyloid
angiopathy is prevented, treated, or inhibited.
[0039] In another aspect, the invention pertains to a method of preventing, treating or
inhibiting cerebral amyloid angiopathy, comprising contacting a blood vessel wall
cell with a therapeutic compound of a therapeutic formulation, formulated to significantly
reduce or prevent gastrointestinal intolerance, such that cerebral amyloid angiopathy
is prevented, treated, or inhibited.
[0040] An additional aspect of the present invention is directed to a method of preventing,
treating or inhibiting Alzheimer's disease in a subject, comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance.
[0041] An additional aspect of the present invention is directed to a method of preventing,
treating or inhibiting Alzheimer's disease in a subject, comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
such that Alzheimer's disease is prevented, treated, or inhibited.
[0042] In another aspect, the invention is directed to a packaged pharmaceutical composition
for inhibiting amyloid deposition in a subject, comprising a container holding a therapeutically
effective amount of a therapeutic formulation comprising a therapeutic compound formulated
to significantly reduce or prevent gastrointestinal intolerance; and instructions
for using the compound for inhibiting amyloid deposition in a subject.
[0043] In yet another aspect, the invention pertains to a packaged pharmaceutical composition
for treating amyloidosis in a subject, comprising a container holding a therapeutically
effective amount of a therapeutic formulation comprising a therapeutic compound formulated
to significantly reduce or prevent gastrointestinal intolerance; and instructions
for using the compound for treating amyloidosis in a subject.
[0044] In yet another aspect, the invention pertains to a packaged pharmaceutical composition
for treating Alzheimer's disease in a subject, comprising a container holding a therapeutically
effective amount of a therapeutic formulation comprising a therapeutic compound formulated
to significantly reduce or prevent gastrointestinal intolerance; and instructions
for using the compound for treating Alzheimer's disease in a subject.
[0045] Another aspect of the invention is a packaged pharmaceutical composition for treating
a viral infection, comprising a container holding a therapeutically effective amount
of a therapeutic formulation comprising a therapeutic compound formulated to significantly
reduce or prevent gastrointestinal intolerance; and instructions for using the compound
for treating the viral infection.
[0046] In an additional aspect, the invention is directed to a packaged pharmaceutical composition
for treating a bacterial infection, comprising a container holding a therapeutically
effective amount of a therapeutic formulation comprising a therapeutic compound formulated
to significantly reduce or prevent gastrointestinal intolerance; and instructions
for using the therapeutic compound for treating the bacterial infection.
[0047] In another aspect, the invention pertains to a packaged pharmaceutical composition
for inhibiting the binding of a chemokine to a glycosaminoglycan, comprising a container
holding a therapeutically effective amount of a therapeutic formulation comprising
a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance; and instructions for using the therapeutic compound for inhibiting the
binding of a chemokine to a glycosaminoglycan.
[0048] In yet another aspect, the invention pertains to method of making a therapeutic formulation
comprising combining a therapeutically effective amount of a therapeutic compound
and a pharmaceutically acceptable vehicle, wherein the therapeutic formulation is
formulated to significantly reduce or prevent gastrointestinal intolerance.
[0049] An additional aspect of the invention is directed to a pharmaceutical formulation
comprising greater than 5% by weight of 3-amino-1-propanesulfonic acid.
[0050] In another aspect, the invention is a pharmaceutical formulation comprising a therapeutic
compound and greater than 1% by weight of an additional agent.
[0051] In yet another aspect, the invention pertains to a method for inhibiting amyloid
deposition in a subject comprising administering to the subject an effective amount
of a therapeutic formulation comprising a therapeutic compound formulated with an
enteric-coating, such that amyloid deposition is inhibited.
[0052] Another aspect of the invention is directed to a method for inhibiting amyloid deposition
in a subject comprising administering to the subject an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated with an agent that modifies
the release of the therapeutic compound, such that amyloid deposition is inhibited.
[0053] Additionally, a further aspect of the invention is a pharmaceutical composition for
inhibiting amyloid deposition in a subject comprising a therapeutic compound formulated
with an enteric-coating, such that amyloid deposition is inhibited.
[0054] In another aspect, the present invention pertains to a pharmaceutical composition
for inhibiting amyloid deposition in a subj ect comprising a therapeutic compound
formulated with an agent that modifies the release of the therapeutic compound, such
that amyloid deposition is inhibited.
[0055] In yet another aspect, the invention pertains to a method of formulating a gastrointestinal
intolerance enhanced pharmaceutical composition comprising: combining a pre-selected
therapeutic compound with a pharmaceutically acceptable carrier, wherein the therapeutic
compound is pre-selected for its ability to significantly reduce or prevent gastrointestinal
intolerance, forming a gastrointestinal intolerance enhanced pharmaceutical composition.
[0056] In an additional aspect, the invention is directed to a method for preventing or
treating amyloid-related disease in a subject comprising administering to the subject
an effective amount of a therapeutic formulation comprising a therapeutic compound
formulated with an enteric-coating, such that amyloid-related disease is prevented
or treated.
[0057] Another aspect of the invention is a method for preventing or treating amyloid-related
disease in a subject comprising administering to the subject an effective amount of
a therapeutic formulation comprising a therapeutic compound formulated with an agent
that modifies the release of the therapeutic compound, such that amyloid-related disease
is prevented or treated.
[0058] In another aspect, the invention is directed to a pharmaceutical composition for
preventing or treating amyloid-related disease in a subject comprising a therapeutic
compound formulated with an enteric-coating.
[0059] In yet another aspect, the invention pertains to a pharmaceutical composition for
preventing or treating amyloid-related disease in a subject comprising a therapeutic
compound formulated with an agent that modifies the release of the therapeutic compound.
Detailed Description of the Invention
[0060] This invention pertains to methods, compositions, and formulations useful for treating
amyloidosis. The methods of the invention involve administering to a subject a therapeutic
formulation comprising a therapeutic compound that inhibits amyloid deposition. In
particular, the present invention therefore relates to the use of therapeutic formulations,
e.
g., comprising alkylsulfonic acids, in the prevention or treatment of amyloid-related
diseases, including,
inter alia, Alzheimer's disease, cerebral amyloid angiopathy, inclusion body myositis, macular
degeneration, Down's syndrome, Mild Cognitive Impairment, and type II diabetes.
1. Amyloid-Related Diseases
[0061] The present invention relates to the use of pharmaceutical compositions or formulations
comprising therapeutic compounds useful in the treatment of amyloid-related diseases.
Many amyloid-related diseases are known, and others doubtless exist.
AA (Reactive) Amyloidosis
[0062] Generally, AA amyloidosis is a manifestation of a number of diseases that provoke
a sustained acute phase response. Such diseases include chronic inflammatory disorders,
chronic local or systemic microbial infections, and malignant neoplasms. The most
common form of reactive or secondary (AA) amyloidosis is seen as the result of long-standing
inflammatory conditions. For example, patients with Rheumatoid Arthritis or Familial
Mediterranean Fever (which is a genetic disease) can develop AA amyloidosis. The terms
"AA amyloidosis" and "secondary (AA) amyloidosis" are used interchangeably.
[0063] AA fibrils are generally composed of 8,000 Dalton fragments (AA peptide or protein)
formed by proteolytic cleavage of serum amyloid A protein (ApoSAA), a circulating
apolipoprotein which is mainly synthesized in hepatocytes in response to such cytokines
as IL-1, IL-6 and TNF. Once secreted, ApoSAA is complexed with HDL. Deposition of
AA fibrils can be widespread in the body, with a preference for parenchymal organs.
The kidneys are usually a deposition site, and the liver and the spleen may also be
affected. Deposition is also seen in the heart, gastrointestinal tract, and the skin.
[0064] Underlying diseases which can lead to the development of AA amyloidosis include,
but are not limited to inflammatory diseases, such as rheumatoid arthritis, juvenile
chronic arthritis, ankylosing spondylitis, psoriasis, psoriatic arthropathy, Reiter's
syndrome, Adult Still's disease, Behcet's syndrome, and Crohn's disease. AA deposits
are also produced as a result of chronic microbial infections, such as leprosy, tuberculosis,
bronchiectasis, decubitus ulcers, chronic pyelonephritis, osteomyelitis, and Whipple's
disease. Certain malignant neoplasms can also result in AA fibril amyloid deposits.
These include such conditions as Hodgkin's lymphoma, renal carcinoma, carcinomas of
gut, lung and urogenital tract, basal cell carcinoma, and hairy cell leukemia. Other
underlying conditions that may be associated with AA amyloidosis are Castleman's disease
and Schnitzler's syndrome.
AL Amyloidoses (Primary Amyloidosis)
[0065] AL amyloid deposition is generally associated with almost any dyscrasia of the B
lymphocyte lineage, ranging from malignancy of plasma cells (multiple myeloma) to
benign monoclonal gammopathy. At times, the presence of amyloid deposits may be a
primary indicator of the underlying dyscrasia. AL amyloidosis is also described in
detail in
Current Drug Targets, 2004, 5 159-171.
[0066] Fibrils of AL amyloid deposits are composed of monoclonal immunoglobulin light chains
or fragments thereof. More specifically, the fragments are derived from the N-terminal
region of the light chain (kappa or lambda) and contain all or part of the variable
(VL) domain thereof. Deposits generally occur in the mesenchymal tissues, causing
peripheral and autonomic neuropathy, carpal tunnel syndrome, macroglossia, restrictive
cardiomyopathy, arthropathy of large joints, immune dyscrasias, myelomas, as well
as occult dyscrasias. However, it should be noted that almost any tissue, particularly
visceral organs such as the kidney, liver, spleen and heart, may be involved.
Hereditary Systemic Amyloidoses
[0067] There are many forms of hereditary systemic amyloidoses. Although they are relatively
rare conditions, adult onset of symptoms and their inheritance patterns (usually autosomal
dominant) lead to persistence of such disorders in the general population. Generally,
the syndromes are attributable to point mutations in the precursor protein leading
to production of variant amyloidogenic peptides or proteins. Table 1 summarizes the
fibril composition of exemplary forms of these disorders.
TABLE 1 - Fibril Composition of Exemplary Amyloid-Related Diseases
Fibril Peptide/Protein |
Genetic Variant |
Clinical Syndrome |
ATTR protein from Transthyretin and fragments |
Met30, many others |
Familial amyloid polyneuropathy (FAP), (Mainly peripheral nerves) |
ATTR protein from Transthyretin and fragments |
Thr45, Ala60, Ser84, Met111, Ile122 |
Cardiac involvement predominant without neuropathy, familial amyloid polyneuropathy,
senile systemic amyloidosis, Tenosynovium |
N-terminal fragment of Apolipoprotein A1 (apoAI) |
Arg26 |
Familial amyloid polyneuropathy (FAP), (mainly peripheral nerves) |
N-terminal fragment of Apoliproprotein A1 (AapoAI) |
Arg26, Arg50, Arg 60, others |
Ostertag-type, non-neuropathic (predominantly visceral involvement) |
AapoAII from Apolipoprotein AII |
|
Familial amyloidosis |
Lysozyme (Alys) |
Thr56, His67 |
Ostertag-type, non-neuropathic (predominantly visceral involvement) |
Fibrogen alpha chain fragment |
Leu554, Val 526 |
Cranial neuropathy with lattic corneal dystrophy |
Gelsolin fragment (Agel) |
Asn187, Tyr187 |
Cranial neuropathy with lattice corneal dystrophy |
Cystatin C fragment (ACys) |
Glu68 |
Hereditary cerebral hemorrhage (cerebral amyloid angiopathy) - Icelandic type |
β-amyloid protein (Aβ) derived from Amyloid Precursor Protein (APP) |
Gln693 |
Hereditary cerebral hemorrhage (cerebral amyloid angiopathy) - Dutch type |
β-amyloid protein (Aβ) derived from Amyloid Precursor Protein (APP) |
Ile717, Phe717, Gly717 |
Familial Alzheimer's Disease |
β-amyloid protein (Aβ) derived from Amyloid Precursor Protein (APP), e.g., bPP 695 |
Gln 618 |
Alzheimer's disease, Down's syndrome, hereditary cerebral hemorrhage with amyloidosis,
Dutch type |
β-amyloid protein (Aβ) derived from Amyloid Precursor Protein (APP) |
Asn670, Leu671 |
Familial Dementia - probably Alzheimer's Disease |
Prion Protein (PrP, APrpSC) derived from Prp precursor protein (51-91 insert) |
Leu102, Va1167, Asn178, Lys200 |
Familial Creutzfeldt-Jakob disease; Gerstmann-Sträussler-Scheinker syndrome (hereditary
spongiform encephalopathies, prion diseases) |
AA derived from Serum amyloid A protein (ApoSAA) |
|
Familial Mediterranean fever, predominant renal involvement (autosomal recessive) |
AA derived from Serum amyloid A protein (ApoSAA) |
|
Muckle-Well's syndrome, nephropathy, deafness, urticaria, limb pain |
Unknown |
|
Cardiomyopathy with persistent atrial standstill |
Unknown |
|
Cutaneous deposits (bullous, papular, pustulodermal) |
AH amyloid protein, derived from immunoglobulin heavy chain (gamma I) |
Aγ I |
Myeloma associated amyloidosis |
ACal amyloid protein from (pro)calcitonin |
(Pro) calcitonin |
Medullary carcinomas of the thyroid |
AANF amyloid protein from atrial natriuretic factor |
|
Isolated atrial amyloid |
Apro from Prolactin |
|
Prolactinomas |
Abri/ADan from ABri peptide |
|
British and Danish familial Dementia |
[0068] The data provided in Table 1 are exemplary and are not intended to limit the scope
of the invention. For example, more than 40 separate point mutations in the transthyretin
gene have been described, all of which give rise to clinically similar forms of familial
amyloid polyneuropathy.
[0069] In general, any hereditary amyloid disorder can also occur sporadically, and both
hereditary and sporadic forms of a disease present with the same characteristics with
regard to amyloid. For example, the most prevalent form of secondary AA amyloidosis
occurs sporadically, e.g. as a result of ongoing inflammation, and is not associated
with Familial Mediterranean Fever. Thus general discussion relating to hereditary
amyloid disorders below can also be applied to sporadic amyloidoses.
[0070] Transthyretin (TTR) is a 14 kiloDalton protein that is also sometimes referred to
as prealbumin. It is produced by the liver and choroid plexus, and it functions in
transporting thyroid hormones and vitamin A. At least 50 variant forms of the protein,
each characterized by a single amino acid change, are responsible for various forms
of familial amyloid polyneuropathy. For example, substitution of proline for leucine
at position 55 results in a particularly progressive form of neuropathy; substitution
of methionine for leucine at position 111 resulted in a severe cardiopathy in Danish
patients.
[0071] Amyloid deposits isolated from heart tissue of patients with systemic amyloidosis
have revealed that the deposits are composed of a heterogeneous mixture of TTR and
fragments thereof, collectively referred to as ATTR, the full length sequences of
which have been characterized. ATTR fibril components can be extracted from such plaques
and their structure and sequence determined according to the methods known in the
art (
e.
g.,
Gustavsson, A., et al., Laboratory Invest. 73: 703-708,1995;
Kametani, F., et al., Biochem. Biophys. Res. Commun. 125: 622-628, 1984;
Pras, M., et al., PNAS 80: 539-42, 1983).
[0072] Persons having point mutations in the molecule apolipoprotein A1 (
e.
g., Gly→Arg26; Trp→Arg50; Leu→Arg60) exhibit a form of amyloidosis ("Östertag type")
characterized by deposits of the protein apolipoprotein A1 or fragments thereof (AApoAI).
These patients have low levels of high density lipoprotein (HDL) and present with
a peripheral neuropathy or renal failure.
[0073] A mutation in the alpha chain of the enzyme lysozyme (
e.
g., Ile→Thr56 or Asp→His57) is the basis of another form of Östertag-type non-neuropathic
hereditary amyloid reported in English families. Here, fibrils of the mutant lysozyme
protein (Alys) are deposited, and patients generally exhibit impaired renal function.
This protein, unlike most of the fibril-forming proteins described herein, is usually
present in whole (unfragmented) form (
Benson, M.D., et al. CIBA Fdn. Symp. 199: 104-131, 1996).
[0074] Immunoglobulin light chains tend to form aggregates in various morphologies, including
fibrillar (
e.
g., AL amyloidosis and AH amyloidosis), granular (
e.
g., light chain deposition disease (LCDD), heavy chain deposition disease (HCDD), and
light-heavy chain deposition disease (LHCDD)), crystalline (
e.
g., Acquired Farconi's Syndome), and microtubular (
e.
g., Cryoglobulinemia). AL and AH amyloidosis is indicated by the formation of insoluble
fibrils of immunoglobulin light chains and heavy chain, respectively, and/or their
fragments. In AL fibrils, lambda (λ) chains such as λ VI chains (λ6 chains), are found
in greater concentrations than kappa (κ) chains. λIII chains are also slightly elevated.
Merlini et al., CLIN CHEMLAB MED 39(11):1065-75 (2001). Heavy chain amyloidosis (AH) is generally characterized by aggregates of gamma
chain amyloid proteins of the IgGl subclass.
Eulitz et al., PROC NATAL ACAD SCI USA 87:6542-46 (1990).
[0075] Comparison of amyloidogenic to non-amyloidogenic light chains has revealed that the
former can include replacements or substitutions that appear to destabilize the folding
of the protein and promote aggregation. AL and LCDD have been distinguished from other
amyloid diseases due to their relatively small population monoclonal light chains,
or fragments thereof, which are manufactured by neoplastic expansion of an antibody-producing
B cell. AL aggregates typically are well-ordered fibrils of lambda chains. LCDD aggregates
are relatively amorphous aggregations of both kappa and lambda chains, with a majority
being kappa, in some cases κIV.
Bellotti et al., JOURNAL OF STRUCTURAL BIOLOGY 13:280-89 (2000). Comparison of amyloidogenic and non-amyloidogenic heavy chains in patients having
AH amyloidosis has revealed missing and/or altered components.
Eulitz et al., PROC NATL ACAD SCI USA 87:6542-46 (1990) (pathogenic heavy chain characterized by significantly lower molecular mass than
non-amyloidogenic heavy chains); and
Solomon et al. AM J HEMAT 45(2) 171-6 (1994) (amyloidogenic heavy chain characterized as consisting solely of the VH-D portion
of the non-amyloidogenic heavy chain).
[0076] Accordingly, potential methods of detecting and monitoring treatment of subjects
having or at risk of having AL, LCDD, AH, and the like, include but are not limited
to immunoassaying plasma or urine for the presence or depressed deposition of amyloidogenic
light or heavy chains,
e.
g., amyloid λ, amyloid κ, amyloid κIV, amyloid γ, or amyloid γ1.
Brain Amyloidosis
[0077] The most frequent type of amyloid in the brain is composed primarily of Aβ peptide
fibrils, resulting in dementia associated with sporadic (non-hereditary) Alzheimer's
disease. In fact, the incidence of sporadic Alzheimer's disease greatly exceeds forms
shown to be hereditary. Nevertheless, fibril peptides forming plaques are very similar
in both types. Brain amyloidosis includes those diseases, conditions, pathologies,
and other abnormalities of the structure or function of the brain, including components
thereof, in which the causative agent is amyloid. The area of the brain affected in
an amyloid-related disease may be the stroma including the vasculature or the parenchyma
including functional or anatomical regions, or neurons themselves. A subject need
not have received a definitive diagnosis of a specifically recognized amyloid-related
disease. The term "amyloid-related disease" includes brain amyloidosis.
[0078] Amyloid-β peptide ("Aβ") is a 39-43 amino acid peptide derived by proteolysis from
a large protein known as Beta Amyloid Precursor Protein ("βAPP"). Mutations in βAPP
result in familial forms of Alzheimer's disease, Down's syndrome, cerebral amyloid
angiopathy, and senile dementia, characterized by cerebral deposition of plaques composed
of Aβ fibrils and other components, which are described in further detail below. Known
mutations in APP associated with Alzheimer's disease occur proximate to the cleavage
sites of β or γ-secretase, or within Aβ. For example, position 717 is proximate to
the site of gamma-secretase cleavage of APP in its processing to Aβ, and positions
670/671 are proximate to the site of β-secretase cleavage. Mutations at any of these
residues may result in Alzheimer's disease, presumably by causing an increase in the
amount of the 42/43 amino acid form of Aβ generated from APP. The familial form of
Alzheimer's disease represents only 10% of the subject population. Most occurrences
of Alzheimer's disease are sporadic cases where APP and Aβ do not possess any mutation.
The structure and sequence of Aβ peptides of various lengths are well known in the
art. Such peptides can be made according to methods known in the art, or extracted
from the brain according to known methods (
e.
g.,
Glenner and Wong, Biochem. Biophys. Res. Comm. 129, 885-90 (1984);
Glenner and Wong, Biochem. Biophys. Res. Comm. 122, 1131-35 (1984)). In addition, various forms of the peptides are commercially available. APP is
expressed and constitutively catabolized in most cells. The dominant catabolic pathway
appears to be cleavage of APP within the Aβ sequence by an enzyme provisionally termed
α-secretase, leading to release of a soluble ectodomain fragment known as APPsa. This
cleavage precludes the formation of Aβ peptide. In contrast to this non-amyloidogenic
pathway, APP can also be cleaved by enzymes known as β- and γ-secretase at the
N- and
C-tennini of the Aβ, respectively, followed by release of Aβ into the extracellular
space. To date, BACE has been identified as β-secretase (
Vasser, et al., Science 286:735-741, 1999) and presenilins have been implicated in γ-secretase activity (
De Strooper, et al., Nature 391, 387-90 (1998)). The 39-43 amino acid Aβ peptide is produced by sequential proteolytic cleavage
of the amyloid precursor protein (APP) by the β and γ secretases enzyme. Although
Aβ40 is the predominant form produced, 5-7% of total Aβ exists as Aβ42 (
Cappai et al., Int. J. Biochem. Cell Biol. 31. 885-89 (1999)).
[0079] The length of the Aβ peptide appears to dramatically alter its biochemical/biophysical
properties. Specifically, the additional two amino acids at the
C-terminus of Aβ42 are very hydrophobic, presumably increasing the propensity of Aβ42
to aggregate. For example, Jarrett,
et al. demonstrated that Aβ42 aggregates very rapidly
in vitro compared to Aβ40, suggesting that the longer forms of Aβ may be the important pathological
proteins that are involved in the initial seeding of the neuritic plaques in Alzheimer's
disease (
Jarrett, et al., Biochemistry 32, 4693-97 (1993);
Jarrett, et al., Ann. N.Y. Acad. Sci. 695, 144-48 (1993)). This hypothesis has been further substantiated by the recent analysis of the contributions
of specific forms of Aβ in cases of genetic familial forms of Alzheimer's disease
("FAD"). For example, the "London" mutant form of APP (APPV717I) linked to FAD selectively
increases the production of Aβ 42/43 forms versus Aβ 40 (
Suzuki, et al., Science 264, 1336-40 (1994)) while the "Swedish" mutant form of APP (APPK670N/M671L) increases levels of both
Aβ40 and Aβ42/43 (
Citron, et al., Nature 360, 672-674 (1992);
Cai, et al., Science 259, 514-16, (1993)). Also, it has been observed that FAD-linked mutations in the Presenilin-1 ("PS1")
or Presenilin-2 ("PS2") genes will lead to a selective increase in Aβ42/43 production
but not Aβ40 (
Borchelt, et al., Neuron 17, 1005-13 (1996)). This finding was corroborated in transgenic mouse models expressing PS mutants
that demonstrate a selective increase in brain Aβ42 (Borchelt,
op cit.;
Duff, et al., Neurodegeneration 5(4), 293-98 (1996)). Thus the leading hypothesis regarding the etiology of Alzheimer's disease is that
an increase in Aβ42 brain concentration due to an increased production and release
of Aβ42 or a decrease in clearance (degradation or brain clearance) is a causative
event in the disease pathology.
[0080] Multiple mutation sites in either Aβ or the APP gene have been identified and are
clinically associated with either dementia or cerebral hemorrhage. Exemplary CAA disorders
include, but are not limited to, hereditary cerebral hemorrhage with amyloidosis of
Icelandic type (HCHWA-I); the Dutch variant of HCHWA (HCHWA-D; a mutation in Aβ);
the Flemish mutation of Aβ; the Arctic mutation of Aβ; the Italian mutation of Aβ;
the Iowa mutation of Aβ; familial British dementia; and familial Danish dementia.
CAA may also be sporadic.
[0081] As used herein, the terms "β amyloid," "amyloid-β," and the like refer to amyloid
β proteins or peptides, amyloid β precursor proteins or peptides, intermediates, and
modifications and fragments thereof, unless otherwise specifically indicated. In particular,
"Aβ" refers to any peptide produced by proteolytic processing of the APP gene product,
especially peptides which are associated with amyloid pathologies, including Aβ1-39,
Aβ1-40, Aβ1-41, Aβ1-42, and Aβ1-43. For convenience of nomenclature, "Aβ1-42" maybe
referred to herein as "Aβ1-42)" or simply as"Aβ42" or "Aβ42" (and likewise for any
other amyloid peptides discussed herein). As used herein, the terms "β amyloid," "amyloid-β,"
and "Aβ" are synonymous.
[0082] Unless otherwise specified, the term "amyloid" refers to amyloidogenic proteins,
peptides, or fragments thereof which can be soluble (
e.
g., monomeric or oligomeric) or insoluble (
e.
g., having fibrillary structure or in amyloid plaque).
See,
e.
g.,
MP Lambert, et al., Proc. Nat'l Acad. Sci. USA 95, 6448-53 (1998). "Amyloidosis" or "amyloid disease" or "amyloid-related disease" refers to a pathological
condition characterized by the presence of amyloid fibers. "Amyloid" is a generic
term referring to a group of diverse but specific protein deposits (intracellular
or extracellular) which are seen in a number of different diseases. Though diverse
in their occurrence, all amyloid deposits have common morphologic properties, stain
with specific dyes (
e.
g., Congo red), and have a characteristic red-green birefringent appearance in polarized
light after staining. They also share common ultrastructural features and common X-ray
diffraction and infrared spectra.
[0083] Gelsolin is a calcium binding protein that binds to fragments and actin filaments.
Mutations at position 187 (
e.
g., Asp→Asn; Asp→Tyr) of the protein result in a form of hereditary systemic amyloidosis,
usually found in patients from Finland, as well as persons of Dutch or Japanese origin.
In afflicted individuals, fibrils formed from gelsolin fragments (Agel), usually consist
of amino acids 173-243 (68 kDa carboxyterminal fragment) and are deposited in blood
vessels and basement membranes, resulting in corneal dystrophy and cranial neuropathy
which progresses to peripheral neuropathy, dystrophic skin changes and deposition
in other organs. (
Kangas, H., et al. Human Mol. Genet. 5(9): 1237-1243, 1996).
[0084] Other mutated proteins, such as mutant alpha chain of fibrinogen (AfibA) and mutant
cystatin C (Acys) also form fibrils and produce characteristic hereditary disorders.
AfibA fibrils form deposits characteristic of a nonneuropathic hereditary amyloid
with renal disease; Acys deposits are characteristic of a hereditary cerebral amyloid
angiopathy reported in Iceland (
Isselbacher, Harrison's Principles of Internal Medicine, McGraw-Hill, San Francisco,
1995; Benson,
et al.). In at least some cases, patients with cerebral amyloid angiopathy (CAA) have been
shown to have amyloid fibrils containing a non-mutant form of cystatin C in conjunction
with amyloid beta protein (
Nagai, A., et al. Molec. Chem. Neuropathol. 33: 63-78, 1998).
[0086] A predominant mutant isoform, Prp
Sc, also referred to as AScr, differs from the normal cellular protein in its resistance
to protease degradation, insolubility after detergent extraction, deposition in secondary
lysosomes, post-translational synthesis, and high β-pleated sheet content. Genetic
linkage has been established for at least five mutations resulting in Creutzfeldt-Jacob
disease (CJD), Gerstmann-Sträussler-Scheinker syndrome (GSS), and fatal familial insomnia
(FFI). (Baldwin,
supra) Methods for extracting fibril peptides from scrapie fibrils, determining sequences
and making such peptides are known in the art (
e.
g.,
Beekes, M., et al. J. Gen. Virol. 76: 2567-76, 1995).
[0087] For example, one form of GSS has been linked to a PrP mutation at codon 102, while
telencephalic GSS segregates with a mutation at codon 117. Mutations at codons 198
and 217 result in a form of GSS in which neuritic plaques characteristic of Alzheimer's
disease contain PrP instead of Aβ peptide. Certain forms of familial CJD have been
associated with mutations at codons 200 and 210; mutations at codons 129 and 178 have
been found in both familial CJD and FFI. (Baldwin,
supra).
Cerebral Amyloidosis
[0088] Local deposition of amyloid is common in the brain, particularly in elderly individuals.
The most frequent type of amyloid in the brain is composed primarily of Aβ peptide
fibrils, resulting in dementia or sporadic (non-hereditary) Alzheimer's disease. The
most common occurrences of cerebral amyloidosis are sporadic and not familial. For
example, the incidence of sporadic Alzheimer's disease and sporadic CAA greatly exceeds
the incidence of familial AD and CAA. Moreover, sporadic and familial forms of the
disease cannot be distinguished from each other (they differ only in the presence
or absence of an inherited genetic mutation); for example, the clinical symptoms and
the amyloid plaques formed in both sporadic and familial AD are very similar, if not
identical.
[0089] Cerebral amyloid angiopathy (CAA) refers to the specific deposition of amyloid fibrils
in the walls of leptomingeal and cortical arteries, arterioles and veins. It is commonly
associated with Alzheimer's disease, Down's syndrome and normal aging, as well as
with a variety of familial conditions related to stroke or dementia (
see Frangione et al., Amyloid: J. Protein Folding Disord. 8, Suppl. 1, 36-42 (2001)). CAA can occur sporadically or be hereditary.
Senile Systemic Amyloidosis
[0090] Amyloid deposition, either systemic or focal, increases with age. For example, fibrils
of wild type transthyretin (TTR) are commonly found in the heart tissue of elderly
individuals. These may be asymptomatic, clinically silent, or may result in heart
failure. Asymptomatic fibrillar focal deposits may also occur in the brain (Aβ), corpora
amylacea of the prostate (β
2 microglobulin), joints and seminal vesicles.
Dialysis-related Amyloidosis (DRA)
[0091] Plaques composed of β
2 microglobulin (β
2M) fibrils commonly develop in patients receiving long term hemodialysis or peritoneal
dialysis. β
2 microglobulin is a 11.8 kiloDalton polypeptide and is the light chain of Class IMHC
antigens, which are present on all nucleated cells. Under normal circumstances, β
2M is usually distributed in the extracellular space unless there is an impaired renal
function, in which case β
2M is transported into tissues where it polymerizes to form amyloid fibrils. Failure
of clearance such as in the case of impaired renal function, leads to deposition in
the carpal tunnel and other sites (primarily in collagen-rich tissues of the joints).
Unlike other fibril proteins, β
2M molecules are not produced by cleavage of a longer precursor protein and are generally
present in unfragmented form in the fibrils. (Benson,
supra). Retention and accumulation of this amyloid precursor has been shown to be the main
pathogenic process underlying DRA. DRA is characterized by peripheral joint osteoarthropathy
(
e.
g., joint stiffness, pain, swelling, etc.). Isoforms of β
2M, glycated β
2M, or polymers of β
2M in tissue are the most amyloidogenic form (as opposed to native β
2M). Unlike other types of amyloidosis, β
2M is confined largely to osteoarticular sites. Visceral depositions are rare. Occasionally,
these deposits may involve blood vessels and other important anatomic sites.
[0092] Despite improved dialysis methods for removal of β
2M, the majority of patients have plasmatic β
2M concentrations that remain dramatically higher than normal. These elevated β
2M concentrations generally lead to Diabetes-Related Amyloidosis (DRA) and cormorbidities
that contribute to mortality.
Islet Amyloid Polypeptide and Diabetes
[0093] Islet hyalinosis (amyloid deposition) was first described over a century ago as the
presence of fibrous protein aggregates in the pancreas of patients with severe hyperglycemia
(
Opie, EL., JExp. Med. 5: 397-428, 1901). Today, islet amyloid, composed predominantly of islet amyloid polypeptide (IAPP),
or amylin, is a characteristic histopathological marker in over 90% of all cases of
Type II diabetes (also known as Non-Insulin Dependent Diabetes, or NIDDM). These fibrillar
accumulations result from the aggregation of the islet amyloid polypeptide (IAPP)
or amylin, which is a 37 amino acid peptide, derived from a larger precursor peptide,
called pro-IAPP.
[0094] IAPP is co-secreted with insulin in response to β-cell secretagogues. This pathological
feature is not associated with insulin-dependent (Type I) diabetes and is a unifying
characteristic for the heterogeneous clinical phenotypes diagnosed as NIDDM (Type
II diabetes).
[0095] Longitudinal studies in cats and immunocytochemical investigations in monkeys have
shown that a progressive increase in islet amyloid is associated with a dramatic decrease
in the population of insulin-secreting β-cells and increased severity of the disease.
More recently, transgenic studies have strengthened the relationship between IAPP
plaque forniation and β-cell apoptosis and dysfunction, indicating that amyloid deposition
is a principal factor in increasing severity of Type II diabetes.
[0096] IAPP has also been shown to induce β-islet cell toxicity
in vitro, indicating that appearance of IAPP fibrils in the pancreas of Type II or Type I diabetic
patients (post-islet transplantation) could contribute to the loss of the β-cell islets
(Langerhans) and organ dysfunction. In patients with Type II diabetes, the accumulation
of pancreatic IAPP leads to formation of oligomeric IAPP, leading to a buildup of
IAPP-amyloid as insoluble fibrous deposits which eventually destroys the insulin-producing
β cells of the islet, resulting in β cell depletion and failure (
Westermark, P., Grimelius, L., Acta Path. Microbiol. Scand., sect. A. 81: 291-300,1973;
de Koning, EJP., et al., Diabetologia 36: 378-384, 1993; and
Lorenzo, A., et al., Nature 368: 756-760, 1994). Accumulation of IAPP as fibrous deposits can also have an impact on the ratio of
pro-IAPP to IAPP normally found in plasma by increasing this ratio due to the trapping
of IAPP in deposits. Reduction of β cell mass can be manifested by hyperglycemia and
insulinemia. This β-cell mass loss can lead to a need for insulin therapy.
[0097] Diseases caused by the death or malfunctioning of a particular type or types of cells
can be treated by transplanting into the patient healthy cells of the relevant type
of cell. This approach has been used for Type I diabetes patients. Often pancreatic
islet cells from a donor are cultured
in vitro prior to transplantation, to allow them to recover after the isolation procedure
or to reduce their immunogenicity. However, in many instances islet cell transplantation
is unsuccessful, due to death of the transplanted cells. One reason for this poor
success rate is IAPP, which organizes into toxic oligomers. Toxic effects may result
from intracellular and extracellular accumulation of fibril oligomers. The IAPP oligomers
can form fibrils and become toxic to the cells
in vitro. In addition, IAPP fibrils are likely to continue to grow after the cells are transplanted
and cause death or dysfunction of the cells. This may occur even when the cells are
from a healthy donor and the patient receiving the transplant does not have a disease
that is characterized by the presence of fibrils. For example, compounds of the present
invention may also be used in preparing tissues or cells for transplantation according
to the methods described in International Patent Application (
PCT) number WO 01/003680.
[0098] The compounds of the invention may also stabilize the ratio of the concentrations
of Pro-IAPP/IAPP, pro-Insulin/Insulin and C-peptide levels. In addition, as biological
markers of efficacy, the results of the different tests, such as the arginine-insulin
secretion test, the glucose tolerance test, insulin tolerance and sensitivity tests,
could all be used as markers of reduced β-cell mass and/or accumulation of amyloid
deposits. Such class of drugs could be used together with other drugs targeting insulin
resistance, hepatic glucose production, and insulin secretion. Such compounds might
prevent insulin therapy by preserving β-cell function and be applicable to preserving
islet transplants.
Hormone-derived Amyloidoses
[0099] Endocrine organs may harbor amyloid deposits, particularly in aged individuals. Hormone-secreting
tumors may also contain hormone-derived amyloid plaques, the fibrils of which are
made up of polypeptide hormones such as calcitonin (medullary carcinoma of the thyroid),
and atrial natriuretic peptide (isolated atrial amyloidosis). Sequences and structures
of these proteins are well known in the art.
Miscellaneous Amyloidoses
[0100] There are a variety of other forms of amyloid disease that are normally manifest
as localized deposits of amyloid. In general, these diseases are probably the result
of the localized production or lack of catabolism of specific fibril precursors or
a predisposition of a particular tissue (such as the joint) for fibril deposition.
Examples of such idiopatlic deposition include nodular AL amyloid, cutaneous amyloid,
endocrine amyloid, and tumor-related amyloid. Other amyloid-related diseases include
those described in Table 1, such as familial amyloid polyneuropathy (FAP), senile
systemic amyloidosis, Tenosynovium, familial amyloidosis, Ostertag-type, non-neuropathic
amyloidosis, cranial neuropathy, hereditary cerebral hemorrhage, familial dementia,
chronic dialysis , familial Creutzfeldt-Jakob disease; Gerstmann-Sträussler-Scheinker
syndrome, hereditary spongiform encephalopathies, prion diseases, familial Mediterranean
fever, Muckle-Well's syndrome, nephropathy, deafness, urticaria, limb pain, cardiomyopathy,
cutaneous deposits, multiple myeloma, benign monoclonal gammopathy, maccoglobulinaemia,
myeloma associated amyloidosis, medullary carcinomas of the thyroid, isolated atrial
amyloid, and diabetes.
[0101] The compounds of the invention may be administered therapeutically or prophylactically
to treat diseases associated with amyloid fibril formation, aggregation or deposition,
regardless of the clinical setting. The compounds of the invention may act to ameliorate
the course of an amyloid-related disease using any of the following mechanisms, such
as, for example but not limited to: slowing the rate of amyloid fibril formation or
deposition; lessening the degree of amyloid deposition; inhibiting, reducing, or preventing
amyloid fibril formation; inhibiting amyloid induced inflammation; enhancing the clearance
of amyloid from, for example, the brain; or protecting cells from amyloid induced
(oligomers or fibrillar) toxicity.
[0102] In an embodiment, the compounds/formulations of the invention may be administered
therapeutically or prophylactically to treat diseases associated with amyloid-β fibril
formation, aggregation or deposition. The compounds of the invention may act to ameliorate
the course of an amyloid-β related disease using any of the following mechanisms (this
list is meant to be illustrative and not limiting): slowing the rate of amyloid-β
fibril formation or deposition; lessening the degree of amyloid-β deposition; inhibiting,
reducing, or preventing amyloid-β fibril formation; inhibiting neurodegeneration or
cellular toxicity induced by amyloid-β; inhibiting amyloid-β induced inflammation;
enhancing the clearance of amyloid-β from the brain; or favoring greater catabolism
of Aβ.
[0103] Compounds of the invention may be effective in controlling amyloid-β deposition either
following their entry into the brain (following penetration of the blood brain barrier)
or from the periphery. When acting from the periphery, a compound may alter the equilibrium
of Aβ between the brain and the plasma so as to favor the exit of Aβ from the brain.
An increase in the exit of Aβ from the brain would result in a decrease in Aβ brain
concentration and therefore favor a decrease in Aβ deposition. In addition, compounds
that penetrate the brain may control deposition by acting directly on brain Aβ,
e.
g., by maintaining it in a non-fibrillar form or favoring its clearance from the brain.
The compounds may slow down APP processing; may increase degradation of Aβ fibrils
by macrophages or by neuronal cells; or may decrease Aβ production by activated microglia.
These compounds could also prevent Aβ in the brain from interacting with the cell
surface and therefore prevent neurotoxicity, neurodegeneration, or inflammation.
[0104] In a preferred embodiment, the method is used to treat Alzheimer's disease (
e.
g., sporadic or familial AD). The method can also be used prophylactically or therapeutically
to treat other clinical occurrences of amyloid-β deposition, such as in Down's syndrome
individuals and in patients with cerebral amyloid angiopathy ("CAA"), hereditary cerebral
hemorrhage, or early Alzheimer's disease.
[0105] In another embodiment, the method is used to treat mild cognitive impairment. Mild
Cognitive Impairment ('"MCI") is a condition characterized by a state of mild but
measurable impairment in thinking skills, which is not necessarily associated with
the presence of dementia. MCI frequently, but not necessarily, precedes Alzheimer's
disease.
[0107] Additionally, it has been shown that Aβ is associated with abnormal extracellular
deposits, known as drusen, that accumulate along the basal surface of the retinal
pigmented epithelium in individuals with age-related macular degeneration (ARMD).
ARMD is a cause of irreversible vision loss in older individuals. It is believed that
Aβ deposition could be an important component of the local inflammatory events that
contribute to atrophy of the retinal pigmented epithelium, drusen biogenesis, and
the pathogenesis of ARMD (
Johnson, et al., Proc. Natl. Acad. Sci. USA 99(18), 11830-5 (2002)).
[0108] In another embodiment, the invention also relates to a method of treating or preventing
an amyloid-related disease in a subject (preferably a human) comprising administering
to the subject a therapeutic amount of a compound according to the following Formulae
or otherwise described herein, such that amyloid fibril formation or deposition, neurodegeneration,
or cellular toxicity is reduced or inhibited. In another embodiment, the invention
relates to a method of treating or preventing an amyloid-related disease in a subject
(preferably a human) comprising administering to the subject a therapeutic amount
of a compound according to the following Formulae or otherwise described herein, such
that cognitive function is improved or stabilized or further deterioration in cognitive
function is prevented, slowed, or stopped in patients with brain amyloidosis,
e.
g., Alzheimer's disease, Down's syndrome or cerebral amyloid angiopathy. These compounds
can also improve quality of daily living in these subjects.
[0109] The therapeutic compounds of the invention may treat amyloidosis related to type
II diabetes by, for example, stabilizing glycemia, preventing or reducing the loss
of β cell mass, reducing or preventing hyperglycemia due to loss of β cell mass, and
modulating (e.g., increasing or stabilizing) insulin production. The compounds of
the invention may also stabilize the ratio of the concentrations of pro-IAPP/IAPP.
[0110] The therapeutic compounds of the invention may treat AA (secondary) amyloidosis and/or
AL (primary) amyloidosis, by stabilizing renal function, decreasing proteinuria, increasing
creatinine clearance (e.g., by at least 50% or greater or by at least 100% or greater),
or by leading to remission of chronic diarrhea, or weight gain (e.g., 10% or greater).
II. Methods of the Invention
[0111] In one embodiment, the invention includes a method for inhibiting amyloid deposition
in a subject comprising administering to the subject an effective amount of a therapeutic
formulation comprising a therapeutic compound as described herein, such that amyloid
deposition is inhibited. Accordingly, in another embodiment, the invention pertains
to a method of treating or preventing an amyloid-related disease,
e.
g., Aβ-related disease, in a subject comprising administering to a subject a therapeutic
amount of a therapeutic formulation comprising a therapeutic compound of the invention.
[0112] The formulations of the invention may be administered therapeutically or prophylactically
to treat diseases associated with amyloid-β fibril formation, aggregation or deposition.
The formulations of the invention may act to ameliorate the course of an amyloid-β
related disease using any of the following mechanisms (this list is meant to be illustrative
and not limiting): slowing the rate of amyloid-β fibril formation or deposition; lessening
the degree of amyloid-β deposition; inhibiting, reducing, or preventing amyloid-β
fibril formation; inhibiting neurodegeneration or cellular toxicity induced by amyloid-β;
inhibiting amyloid-β induced inflammation; or enhancing the clearance of amyloid-β
from the brain.
[0113] The formulations of the invention may be effective in controlling amyloid-β deposition
either following their entry into the brain (following penetration of the blood brain
barrier) or from the periphery. Without wishing to be bound by theory, when acting
from the periphery, the compound of a formulation of the invention may alter the equilibrium
of Aβ between the brain and the plasma so as to favor the exit of Aβ from the brain.
An increase in the exit of Aβ from the brain would result in a decrease in Aβ brain
concentration and therefore favor a decrease in Aβ deposition. Alternatively, the
compounds of a formulation of the invention that penetrate the brain could control
deposition by acting directly on brain Aβ,
e.
g., by maintaining it in a non-fibrillar form or favoring its clearance from the brain,
or protecting brain cells from the detrimental effect of Aβ. In another embodiment,
the compound may also prevent the amyloid protein, in its soluble, oligomeric form
or in its fibrillar form, from binding or adhering to a cell surface and causing cell
damage or toxicity.
[0114] In a particular embodiment, the method is used to treat Alzheimer's disease (
e.
g., sporadic or familial AD). The method can also be used prophylactically or therapeutically
to treat other clinical occurrences of amyloid-β deposition, such as in Down's syndrome
individuals and in patients with cerebral amyloid angiopathy ("CAA") or hereditary
cerebral hemorrhage.
[0115] In certain embodiments, the therapeutic formulation of the invention is capable of
inhibiting an interaction between an amyloidogenic protein and a constituent of a
basement membrane,
e.
g., a glycoprotein or a proteoglycan, to thus inhibit amyloid deposition. The ability
of a therapeutic compound of the invention to inhibit an interaction between an amyloidogenic
protein and a glycoprotein or proteoglycan constituent of a basement membrane can
be assessed by an
in vitro binding assay, such as the mass spectroscopy assay described herein (Example 5) or
in
U.S. Patent No. 5,164,295, which is hereby expressly incorporated herein by reference in its entirety.
[0116] The present invention relates to a method for inhibiting amyloid deposition in a
subject comprising administering to the subject an effective amount of a therapeutic
formulation as described herein, the therapeutic formulation comprising a therapeutic
compound that comprises at least one sulfonate group covalently attached to a substituted
or unsubstituted aromatic or aliphatic molecule.
[0117] In another embodiment, the invention includes a method for inhibiting the binding
of a chemokine to a glycosaminoglycan comprising administering a therapeutic formulation
comprising a therapeutic compound as described herein.
[0118] In yet another embodiment, the invention relates to a method for modulating interaction
between a bacterium and a glycosaminoglycan in a human comprising administering to
the human a therapeutic formulation comprising a therapeutic compound as described
herein. Accordingly, the present invention also pertains to a method for treating
a bacterial infection in a human, the method comprising administering to the human
a therapeutic formulation comprising a therapeutic compound of the invention. In a
specific embodiment, the invention is a method for treating a subject afflicted with
Chlamydia comprising administering to the subject a therapeutic formulation comprising
a therapeutic compound as described herein
[0119] In an additional embodiment, the invention includes a method for modulating interaction
between a virus and a glycosaminoglycan in a subject comprising administering to the
subject a therapeutic formulation comprising a therapeutic compound as described herein.
More generally, another embodiment of the invention is a method for treating a viral
infection in a subject comprising administering to the subject a therapeutic formulation
comprising a therapeutic compound of the invention. In a specific embodiment, the
invention is a method for treating a subject afflicted with HSV comprising administering
to the subject a therapeutic formulation comprising a therapeutic compound as described
herein.
[0120] Additionally, one embodiment of the invention is a method for reducing amyloid deposits
in a subject having amyloid deposits, the method comprising administering to the subject
an effective amount of a therapeutic formulation comprising a therapeutic compound
as described herein, such that amyloid deposits are reduced in the subject.
[0121] Another embodiment of the invention pertains to a method of preventing, treating
or inhibiting cerebral amyloid angiopathy in a subject, comprising administering a
therapeutic formulation comprising a therapeutic compound of the invention to the
subject. Furthermore, the invention includes a method of preventing, treating, or
inhibiting cerebral amyloid angiopathy, comprising contacting a blood vessel wall
cell with a therapeutic formulation comprising a therapeutic compound of the invention,
such that cerebral amyloid angiopathy is prevented, treated, or inhibited. In addition,
the invention includes a method of preventing, treating, or inhibiting cerebral amyloid
angiopathy, comprising contacting a blood vessel wall cell with a therapeutic compound
of a therapeutic formulation of the invention, such that cerebral amyloid angiopathy
is prevented, treated, or inhibited.
[0122] The language "inhibition of amyloid deposition" includes reducing, preventing or
stopping of amyloid formation,
e.
g., fibrillogenesis, inhibiting or slowing down of further amyloid deposition in a
subject with amyloidosis,
e.
g., already having amyloid deposits, and reducing or reversing amyloid fibrillogenesis
or deposits in a subject with ongoing amyloidosis. For example, the extent of the
inhibition of amyloid deposition is contemplated by the instant application as a range,
which can include, for example, substantially complete elimination of amyloid deposition
or reduction of amyloid deposition. Inhibition of amyloid deposition is determined
relative to an untreated subject, or relative to the treated subject prior to treatment,
or,
e.
g., determined by clinically measurable improvement in pancreatic function in a diabetic
patient, or in the case of a patient with brain amyloidosis,
e.
g., an Alzheimer's or cerebral amyloid angiopathy patient, stabilization of cognitive
function or prevention of a further decrease in cognitive function (
i.
e., preventing, slowing, or stopping disease progression), or improvement of parameters
such as the concentration of Aβ or tau in the CSF. In certain embodiments, amyloid
deposition may be inhibited by, for example, inhibiting an interaction between an
amyloidogenic protein and a constituent of basement membrane, enhancing clearance
of amyloid β from the brain, or inhibiting neurodegeneration or cellular toxicity
induced by amyloid (
e.
g., by soluble or insoluble amyloid,
e.
g., fibrils, by amyloid deposition and/or by amyloid-β, as described herein), or protecting
brain cells from the detrimental effect of Aβ.
[0123] The language "basement membrane" refers to an extracellular matrix comprising glycoproteins
and proteoglycans, including laminin, collagen type IV, fibronectin, agrin, perlecan,
and heparan sulfate proteoglycan (HSPG). In one embodiment, amyloid deposition is
inhibited by interfering with an interaction between an amyloidogenic protein and
a sulfated glycosaminoglycan such as HSPG. Sulfated glycosaminoglycans are known to
be present in all types of amyloids (
see Snow, A. D., et al. Lab. Invest. 56, 120-123 (1987)) and amyloid deposition and HSPG deposition occur coincidentally in animal models
of amyloidosis (
see Snow, A. D., et al., Lab. Invest. 56, 665-675 (1987)).
[0124] As used herein, "treatment" of a subject includes the application or administration
of a composition of the invention to a subject, or application or administration of
a composition of the invention to a cell or tissue from a subject, who has a amyloid-related
disease or condition, has a symptom of such a disease or condition, or is at risk
of (or susceptible to) such a disease or condition, with the purpose of curing, healing,
alleviating, relieving, altering, remedying, ameliorating, improving, or affecting
the disease or condition, the symptom of the disease or condition, or the risk of
(or susceptibility to) the disease or condition. The term "treating" refers to any
indicia of success in the treatment or amelioration of an injury, pathology or condition,
including any objective or subjective parameter such as abatement; remission; diminishing
of symptoms or making the injury, pathology or condition more tolerable to the subject;
slowing in the rate of degeneration or decline; making the final point of degeneration
less debilitating; improving a subject's physical or mental well-being; or, in some
situations, preventing the onset of dementia. The treatment or amelioration of symptoms
can be based on objective or subjective parameters; including the results of a physical
examination, a psychiatric evaluation, or a cognition test such as CDR, MMSE, ADAS-Cog,
or another test known in the art. For example, the methods of the invention successfully
treat a subject's dementia by slowing the rate of or lessening the extent of cognitive
decline.
[0125] In one embodiment, the term "treating" includes maintaining a subject's CDR rating
at its base line rating or at 0. In another embodiment, the term treating includes
decreasing a subject's CDR rating by about 0.25 or more, about 0.5 or more, about
1.0 or more, about 1.5 or more, about 2.0 or more, about 2.5 or more, or about 3.0
or more. In another embodiment, the term "treating" also includes reducing the rate
of the increase of a subject's CDR rating as compared to historical controls. In another
embodiment, the term includes reducing the rate of increase of a subject's CDR rating
by about 5% or more, about 10% or more, about 20% or more, about 25% or more, about
30% or more, about 40% or more, about 50% or more, about 60% or more, about 70% or
more, about 80% or more, about 90% or more, or about 100%, of the increase of the
historical or untreated controls.
[0126] In another embodiment, the term "treating" also includes maintaining a subject's
score on the MMSE. The term "treating" includes increasing a subject's MMSE score
by about 1, about 2, about 3, about 4, about 5, about 7.5, about 10, about 12.5, about
15, about 17.5, about 20, or about 25 points. The term also includes reducing the
rate of the decrease of a subject's MMSE score as compared to historical controls.
In another embodiment, the term includes reducing the rate of decrease of a subject's
MMSE score may be about 5% or less, about 10% or less, about 20% or less, about 25%
or less, about 30% or less, about 40% or less, about 50% or less, about 60% or less,
about 70% or less, about 80% or less, about 90% or less or about 100% or less, of
the decrease of the historical or untreated controls.
[0127] In yet another embodiment, the term "treating" includes maintaining a subject's score
on the ADAS-Cog. The term "treating" includes decreasing a subject's ADAS-Cog score
by about 1 point or greater, by about 2 points or greater, by about 3 points or greater,
by about 4 points or greater, by about 5 points or greater, by about 7.5 points or
greater, by about 10 points or greater, by about 12.5 points or greater, by about
15 points or greater, by about 17.5 points or greater, by about 20 points or greater,
or by about 25 points or greater. The term also includes reducing the rate of the
increase of a subject's ADAS-Cog score as compared to historical controls. In another
embodiment, the term includes reducing the rate of increase of a subject's ADAS-Cog
score by about 5% or more, about 10% or more, about 20% or more, about 25% or more,
about 30% or more, about 40% or more, about 50% or more, about 60% or more, about
70% or more, about 80% or more, about 90% or more or about 100% of the increase of
the historical or untreated controls.
[0128] In another embodiment, the term "treating," for example, for AA or AL amyloidosis,
includes an increase in serum creatinine clearance,
e.
g., an increase of creatinine clearance of 10% or greater, 20% or greater, 50% or greater,
80% or greater, 90% or greater, 100% or greater, 150% or greater, 200% or greater.
The term "treating" also may incluce remission of nephrotic syndrome (NS). It may
also include remission of chronic diarrhea and/or a gain in boday weight,
e.
g., by 10% or greater, 15% or greater, or 20% or greater.
[0129] Without wishing to be bound by theory, in some aspects the pharmaceutical compositions
of the invention contain a compound that prevents or inhibits amyloid fibril formation,
either in the brain or other organ of interest (acting locally) or throughout the
entire body (acting systemically). Pharmaceutical compositions of the invention may
be effective in controlling amyloid deposition either following their entry into the
brain (following penetration of the blood brain barrier) or from the periphery. When
acting from the periphery, a compound of a pharmaceutical composition may alter the
equilibrium of amyloidogenic peptide between the brain and the plasma to favor the
exit of amyloidogenic peptide from the brain. It may also favor clearance (or catabolism)
of the amyloid protein (soluble), and then prevent amyloid fibril formation and deposition
due to a reduction of the amyloid protein pool in a specific organ,
e.
g., liver, spleen, pancreas, kidney, joints, brain,
etc. An increase in the exit of amyloidogenic peptide from the brain would result in
a decrease in amyloidogenic peptide brain concentration, and therefore, favor a decrease
in amyloidogenic peptide deposition. In particular, an agent may lower the levels
of amyloid β peptides,
e.
g., both Aβ40 and Aβ42 in the CSF and the plasma, or the agent may lower the levels
of amyloid β peptides,
e.
g., Aβ40 and Aβ42 in the CSF and increase it in the plasma. Alternatively, compounds
that penetrate the brain could control deposition by acting directly on brain amyloidogenic
peptide
e.
g., by maintaining it in a non-fibrillar form or favoring its clearance from the brain,
by increasing its degradation in the brain, or protecting brain cells from the detrimental
effect of amyloidogenic peptide. An agent can also cause a decrease of the concentration
of the amyloid protein (
i.
e., in a specific organ so that the critical concentration needed to trigger amyloid
fibril formation or deposition is not reached). Furthermore, the compounds described
herein may inhibit or reduce an interaction between amyloid and a cell surface constituent,
for example, a glycosaminoglycan or proteoglycan constituent of a basement membrane.
The compounds may also prevent an amyloid peptide from binding or adhering to a cell
surface, a process that is known to cause cell damage or toxicity. Similarly, the
compounds may block amyloid-induced cellular toxicity or microglial activation or
amyloid-induced neurotoxicity, or inhibit amyloid induced inflammation. The compounds
may also reduce the rate or amount of amyloid aggregation, fibril formation, or deposition,
or the compounds may lessen the degree of amyloid deposition. The foregoing mechanisms
of action should not be construed as limiting the scope of the invention inasmuch
as the invention may be practiced without such information.
[0130] The term "significantly," or "significant," is descriptive of the changes in an identified
property that occur in noticeable or measurable amounts or increments, or where such
changes would have a noticeable, measurable, or unacceptable impact,
e.
g., a detrimental impact. As such, the language "significantly reduce or prevent gastrointestinal
intolerance" includes a noticeable or measurable reduction or prevention of gastrointestinal
intolerance,
i.
e., as opposed to the situation where the reduction or prevention is not noticeable
or measurable. For example, the number of incidents of nausea, vomiting, and gastrointestinal-associated
pain or irritation tracked over time may be used as a measure of the impact of the
therapeutic formulations of the present invention on the reduction or prevention of
gastrointestinal intolerance. Additionally, the language "do not significantly affect
the ability of the therapeutic formulation" is descriptive of items that affect the
ability of the therapeutic formulation, but do not affect the ability in an unacceptable
manner to the extent that the cost outweighs the benefit, and therefore do not "significantly
affect" the ability of the therapeutic formulation.
[0131] "Modulation of amyloid deposition" includes both inhibition, as defined above, and
enhancement of amyloid deposition or fibril formation. The term "modulating" is intended,
therefore, to encompass 1) prevention or stopping of amyloid formation or accumulation,
inhibition or slowing down of further amyloid aggregation in a subject with ongoing
amyloidosis,
e.
g., already having amyloid aggregates, and reducing or reversing of amyloid aggregates
in a subject with ongoing amyloidosis, and 2) enhancing amyloid deposition,
e.
g., increasing the rate or amount of amyloid deposition
in vivo or
in vitro. Amyloid-enhancing compounds may be useful in animal models of amyloidosis, for example,
to make possible the development of amyloid deposits in animals in a shorter period
of time or to increase amyloid deposits over a selected period of time. Amyloid-enhancing
compounds may be useful in screening assays for compounds which inhibit amyloidosis
in vivo, for example, in animal models, cellular assays and
in vitro assays for amyloidosis. Such compounds may be used, for example, to provide faster
or more sensitive assays for compounds. Modulation of amyloid aggregation is determined
relative to an untreated subject or relative to the treated subject prior to treatment.
[0132] The term "therapeutic formulation" includes formulations that perform their intended
therapeutic function,
e.
g., prevent, treat or inhibit amyloidosis, and are used to reduce or prevent gastrointestinal
intolerance (
i.
e. nausea and vomiting). The reduction or prevention of gastrointestinal intolerance
may, for example, depend on direct physical interaction in the stomach or indirect
central action on the Central Nervous System.
[0133] In certain embodiments, the reduction or prevention of the gastrointestinal intolerance
is at least dependent upon the therapeutic compound administered to the subject. In
one embodiment, the therapeutic compound having a desirable therapeutic function is
selected for inclusion in the therapeutic formulation based on its ability to reduce
or prevent gastrointestinal intolerance. In certain embodiments, the compound is modified
in order to produce a therapeutic compound having a desirable therapeutic function
and an ability to reduce or prevent gastrointestinal intolerance. For example, the
compound may be structurally modified (
e.
g., adding appropriate substituents or altering the pharmaceutically acceptable counter
ion) or reformulated such that the compound has a desirable therapeutic function and
an ability to reduce or prevent gastrointestinal intolerance.
[0134] In certain other embodiments, the reduction or prevention of the gastrointestinal
intolerance is not dependent upon the therapeutic compound administered to the subject
alone. For example, in one embodiment, the reduction or prevention of the gastrointestinal
intolerance is not dependent upon the therapeutic compound having the formula 3-amino-1-propanesulfonate
/ X, where X is a counter cation or forms an ester with the sulfonate,
e.
g., 3-amino-1-propanesulfonic acid, or the sodium salt thereof. In a particular embodiment
of the invention, the reduction or prevention of the gastrointestinal intolerance
is dependent on an additional agent, such as enteric-coating or a modified-release
agent.
[0135] In another embodiment, at least one additional agent is included in the therapeutic
formulation, where the additional agent differs from the therapeutic compound. In
a specific embodiment, the additional agent imparts at least one desirable property
to the therapeutic formulation. In a particular embodiment, the desirable property,
at least in part, reduces or prevents gastrointestinal intolerance. Accordingly, in
an additional embodiment, an additional agent may be used in the therapeutic formulation
to reduce or prevent gastrointestinal intolerance independently or in conjunction
with other methods of reducing or preventing intolerance. For example, to protect
against any possible gastrointestinal intolerance that could result from the therapeutic
formulation, the tablets may be enteric-coated or a modified-release agent may be
added to control any rapid release of the therapeutic compound in the stomach or intestine.
[0136] In one embodiment of the invention, the reduction or prevention of gastrointestinal
intolerance is accomplished by the reduction or prevention of a local irritation as
a result of high pH generated during the dissolution of therapeutic compound in the
stomach subsequent to the administration of the therapeutic compound. As an additional
advantage of the therapeutic formulations of the present invention, the reduction
in gastrointestinal intolerance also leads to improved compliance by subjects of administration,
e.
g., patients.
[0137] In another particular embodiment, the therapeutic compound of the invention is an
alkylsulfonic acid. The term "alkylsulfonic acid" includes substituted or unsubstituted
alkylsulfonic acids, and substituted or unsubstituted lower alkylsulfonic acids. Amino-substituted
compounds are especially noteworthy and the invention pertains to substituted- or
unsubstituted-amino-substituted alkylsulfonic acids, and substituted- or unsubstituted-amino-substituted
lower alkylsulfonic acids, an example of which is 3-amino-1-propanesulfonic acid.
Also, it should be noted that the term "alkylsulfonic acid" as used herein is to be
interpreted as being synonymous with the term "alkauesulfonic acid."
[0138] In certain embodiments, the invention pertains to a substituted or unsubstituted
alkylsulfonic acid, substituted or unsubstituted alhylsulfuric acid, substituted or
unsubstituted alkylthiosulfonic acid, substituted or unsubstituted alkylthiosulfuric
acid, or an ester or amide thereof, including pharmaceutically acceptable salts thereof.
For example, the invention relates to a compound that is a substituted or unsubstituted
alkylsulfonic acid, or an ester or amide thereof, including pharmaceutically acceptable
salts thereof. In another embodiment, the invention pertains to a compound that is
a substituted or unsubstituted lower alkylsulfonic acid, or an ester or amide thereof,
including pharmaceutically acceptable salts thereof. Similarly, the invention includes
a compound that is a (substituted- or unsubstituted-amino)-substituted alkylsulfonic
acid, or an ester or amide thereof, including pharmaceutically acceptable salts thereof.
In yet another embodiment, the compound is a (substituted- or unsubstituted-amino)-substituted
lower alkylsulfonic acid, or an ester or amide thereof, including pharmaceutically
acceptable salts thereof.
[0139] Compositions of alkylsulfonic acids, including, for example, 3-amino-1-propanesulfonic
acid and certain salts thereof have been shown to be useful in the treatment of ainyloid-β
related diseases, including Alzheimer's disease and cerebral amyloid angiopathy.
See WO 96/28187,
WO 01/85093, and
U.S. Patent No. 5,840,294.
[0140] One group of example alkylsulfonic acids have the following structure

where Y is either an amino group (having the formula -NR
aR
b wherein R
a and R
b are each independently hydrogen, alkyl, aryl, or heterocyclyl, or R
a and R
b, taken together with the nitrogen atom to which they are attached, form a cyclic
moiety having from 3 to 8 atoms in the ring) or a sulfonic acid group (having the
formula -SO
3-X
+), n is an integer from 1 to 5, and X is hydrogen or a cationic group (
e.
g., sodium). Some exemplary alkylsulfonic acids include the following

[0141] In some cases, the alkylsulfonic acid is a "small molecule," that is, a compound
that that is not itself the product of gene transcription or translation (
e.
g., protein, RNA, or DNA) and has a low molecular weight,
e.
g., less than about 2500. In other cases, the compound may be a biological product,
such as an antibody or an immunogenic peptide.
[0142] Alkylsulfonic acids may be prepared by the methods illustrated in the general reaction
schemes as, for example, described in
US 5,643,562;
5,972,328;
5,728,375;
5,840,294;
4,657,704; and the
U.S. provisional patent application no. 60/482,058, filed June 23, 2003, identified by Attorney Docket No. NBI-156-1,
U.S. provisional patent application no. 60/512,135, filed October 17, 2003, identified by Attorney Docket No. NBI-156-2, both entitled
Synthetic Process for Preparing Compounds for Treating Amyloidosis, and U.S. application 10/_,_, filed June 18, 2004, identified by Attorney Docket No.
NBI-156, entitled
Improved Pharmaceutical Drug Candidates and Method for Preparation Thereof, the contents of which are hereby expressly incorporated by reference in their entireties,
or by modifications thereof, using readily available starting materials, reagents
and conventional synthesis procedures. In these reactions, it is also possible to
make use of variants which are in themselves known, but are not mentioned. For example,
functional and structural equivalents of the compounds described herein and which
have the same general properties, (wherein one or more simple variations of substituents
are made that do not adversely affect the essential nature or the utility of the compound)
may be prepared according to a variety of methods known in the art.
[0143] In general, the compounds of the present invention may be prepared by the methods
illustrated in the general reaction schemes as, for example, described below, or by
modifications thereof,
e.
g., using readily available starting materials, reagents and conventional synthesis
procedures. In these reactions, it is also possible to make use of variants which
are in themselves known, but are not mentioned here. Functional and structural equivalents
of the agents described herein and that have the same general properties, wherein
one or more simple variations of substituents are made which do not adversely affect
the essential nature or the utility of the compound. The agents of the present invention
may be readily prepared in accordance with the synthesis schemes and protocols described
herein, as illustrated in the specific procedures provided. However, those skilled
in the art will recognize that other synthetic pathways for forming the agents of
this invention may be used, and that the following is provided merely by way of example,
and is not limiting to the present invention.
See, e.
g., "
Comprehensive Organic Transformations" by R. Larock, VCH Publishers (1989). It will be further recognized that various protecting and deprotecting strategies
will be employed that are standard in the art (
See, e.
g., "Protective Groups in Organic Synthesis" by Greene and Wuts). Those skilled in
the relevant arts will recognize that the selection of any particular protecting group
(
e.
g., amine and carboxyl protecting groups) will depend on the stability of the protected
moiety with regards to the subsequent reaction conditions and will understand the
appropriate selections. Further illustrating the knowledge of those skilled in the
art is the following sampling of the extensive chemical literature: "
Chemistry of the Amino Acids" by J.P. Greenstein and M. Winitz, John Wiley & Sons,
Inc., New York (1961); "
Comprehensive Organic Transformations" by R. Larock, VCH Publishers (1989);
T.D. Ocain, et al., J. Med. Chem. 31, 2193-99 (1988);
E.M. Gordon, et al., J. Med. Chem. 31, 2199-10 (1988); "
Practice of Peptide Synthesis" by M. Bodansky and A. Bodanszky, Springer-Verlag, New
York (1984); "
Protective Groups in Organic Synthesis" by T. Greene and P. Wuts (1991); "
Asymmetric Synthesis: Construction of Chiral Molecules Using Amino Acids" by G.M.
Coppola and H.F. Schuster, John Wiley & Sons, Inc., New York (1987); "
The Chemical Synthesis of Peptides" by J. Jones, Oxford University Press, New York
(1991); and "
Introduction of Peptide Chemistry" by P.D. Bailey, John Wiley & Sons, Inc., New York
(1992).
[0144] The chemical structures herein are drawn according to the conventional standards
known in the art. Thus, where an atom, such as a carbon atom, as drawn appears to
have an unsatisfied valency, then that valency is assumed to be satisfied by a hydrogen
atom even though that hydrogen atom is not necessarily explicitly drawn. The structures
of some of the compounds of this invention include stereogenic carbon atoms. It is
to be understood that isomers arising from such asymmetry (
e.
g., all enantiomers and diastereomers) are included within the scope of this invention
unless indicated otherwise. That is, unless otherwise stipulated, any chiral carbon
center may be of either (
R)- or (
S)-stereochemistry. Such isomers can be obtained in substantially pure form by classical
separation techniques and by stereochemically-controlled synthesis. Furthermore, alkenes
can include either the
E- or
Z- geometry, where appropriate. In addition, the compounds of the present invention
may exist in unsolvated as well as solvated forms with acceptable solvents such as
water, THF, ethanol, and the like, as well as polymorphic forms,
e.
g., including pseudopolymorphic forms. The term "solvate" represents an aggregate that
comprises one or more molecules of a compound, with one or more molecules of a pharmaceutical
solvent, such as water, ethanol, and the like.
[0145] Further examples of compounds that may be used as a compound according to the present
invention include those described in the
U.S. provisional patent application no. 60/480,906, filed June 23, 2003, identified by Attorney Docket No. NBI-162-1, and
U.S. provisional patent application no. 60/512,047, filed October 17, 2003, identified by Attorney Docket No. NBI-162-2, U.S. application 10/_,_, filed June
18, 2004, identified by Attorney Docket No. NBI-162A and U.S. application 10/_,_,
filed June 18, 2004, identified by Attorney Docket No. NBI-162B, all entitled
Methods and Compositions for Treating Amyloid-Related Diseases; and
U.S. provisional patent application no. 60/480,928, also filed 23 June 2003, identified by Attorney Docket No. NBI-163-1,
U.S. provisional patent application no. 60/512,018, filed October 17, 2003, identified by Attorney Docket No. NBI-163-2 and U.S. application 10/_,_, filed June
18, 2004, identified by Attorney Docket No. NBI-163, all entitled
Methods and Compositions for the Treatment of Amyloid- and Epileptogetiesis-Associated
Diseases.
[0146] In an embodiment, the invention pertains, at least in part to a composition having
a therapeutic compound that is a compound of Formula I-A:

wherein:
R1 is a substituted or unsubstituted cycloalkyl, aryl, arylcycloalkyl, bicyclic or tricyclic
ring, a bicyclic or tricyclic fused ring group, or a substituted or unsubstituted
C2-C10 alkyl group;
R2 is selected from the group consisting of hydrogen, alkyl, mercaptoalkyl, alkenyl,
alkynyl, cycloalkyl, aryl, arylalkyl, thiazolyl, triazolyl, imidazolyl, benzothiazolyl,
and benzoimidazolyl;
Y is SO3-X+, OSO3-X+, or SSO3-X+;
X+ is hydrogen, a cationic group, or an ester forming group (i.e., as in a prodrug,); and
each of L1 and L2 is independently a substituted or unsubstituted C1-C5 alkyl group or absent, or a pharmaceutically acceptable salt thereof, provided that
when R1 is alkyl, L1 is absent.
[0147] In another embodiment, the invention pertains, at least in part to a composition
having a therapeutic compound that is a compound of Formula II-A:

wherein:
R1 is a substituted or unsubstituted cyclic, bicyclic, tricyclic, or benzoheterocyclic
group or a substituted or unsubstituted C2-C10 alkyl group;
R2 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl,
thiazolyl, triazolyl, imidazolyl, benzothiazolyl, benzoimidazolyl, or linked to R1 to form a heterocycle;
Y is SO3-X+, OSO3-X+, or SSO3-X+;
X+ is hydrogen, a cationic group, or an ester forming moiety;
m is 0 or 1;
n is 1, 2, 3, or 4;
L is substituted or unsubstituted C1-C3 alkyl group or absent,
or a pharmaceutically acceptable salt thereof, provided that when R
1 is alkyl, L is absent. In a particular embodiment, n is 3 or 4.
[0148] In yet another embodiment, the invention pertains, at least in part to a composition
having a therapeutic compound that is a compound of Formula III-A:

wherein:
A is nitrogen or oxygen;
R11 is hydrogen, salt-forming cation, ester forming group, -(CH2)x-Q, or when A is nitrogen, A and R11 taken together may be a natural or unnatural amino acid residue or a salt or ester
thereof;
Q is hydrogen, thiazolyl, triazolyl, imidazolyl, benzothiazolyl, or benzoimidazolyl;
x is 0, 1, 2, 3, or 4;
n is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10;
R3, R3a, R4, R4a, R5, R5a, R6, R6a, R7 and R7a are each independently hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl,
aryl, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, cyano, halogen, amino, tetrazolyl,
or two R groups on adjacent ring atoms taken together with the ring atoms form a double
bond. In a particular embodiment, n is 3 or 4. In certain embodiments, one of R3, R3a, R4, R4a, R5, R5a, R6, R6a, R7 and R7a is a moiety of Formula IIIa-A:

wherein:
m is 0, 1,2,3, or 4;
RA, RB, RC, RD, and RE are independently selected from a group of hydrogen, halogen, hydroxyl, alkyl, alkoxyl,
halogenated alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, cyano, thiazolyl,
triazolyl, imidazolyl, tetrazolyl, benzothiazolyl, and benzoimidazolyl; and pharmaceutically
acceptable salts and esters thereof. In certain embodiments, said compound is not
3-(4-phenyl-1, 2, 3, 6-tetrahydro-1-pyridyl)-1-propanesulfonic acid.
[0149] An ester forming group or moiety includes groups, which when bound, form an ester.
Examples of such groups include substituted or unsubstituted alkyl, aryl, alkenyl,
alkynyl, or cycloalkyl. Particular examples of possible esters include methyl, ethyl,
and t-butyl. Additionally, examples of salt forming cations include pharmaceutically
acceptable salts described herein as well as lithium, sodium, potassium, magnesium,
calcium, barium, zinc, iron, and ammonium. In a further embodiment, the salt forming
cation is a sodium salt.
[0150] In yet another embodiment, the invention pertains at least in part to a composition
having a therapeutic compound that is a compound of Formula IV:

wherein:
A is nitrogen or oxygen;
R11 is hydrogen, salt-forming cation, ester forming group, -(CH2)x-Q, or when A is nitrogen, A and R11 taken together may be a natural or unnatural amino acid residue or a salt or ester
thereof;
Q is hydrogen, thiazolyl, triazolyl, imidazolyl, benzothiazolyl, or benzoimidazolyl;
x is 0, 1, 2, 3, or 4;
n is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10;
R4, R4a , R5, R5a, R6, R6a, R7, and R7a are each independently hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl,
aryl, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, cyano, halogen, amino, tetrazolyl,
R4 and R5 taken together, with the ring atoms they are attached to, form a double bond, or
R6 and R7 taken together, with the ring atoms they are attached to, form a double bond;
m is 0, 1, 2, 3, or 4;
R8, R9, R10, R11, and R12 are independently selected from a group of hydrogen, halogen, hydroxyl, alkyl, alkoxyl,
halogenated alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, cyano, thiazolyl,
triazolyl, imidazolyl, tetrazolyl, benzothiazolyl, and benzoimidazolyl, and pharmaceutically
acceptable salts and esters thereof. In a particular embodiment, n is 3 or 4.
[0151] In another embodiment, the invention includes a composition having a therapeutic
compound that is a compound of Formula V-A:

wherein:
A is nitrogen or oxygen;
R11 is hydrogen, salt-forming cation, ester forming group, -(CH2)x-Q, or when A is nitrogen, A and R11 taken together may be a natural or unnatural amino acid residue or a salt or ester
thereof;
Q is hydrogen, thiazolyl, triazolyl, imidazolyl, benzothiazolyl, or benzoimidazolyl;
x is 0, 1,2, 3, or 4;
n is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10;
aa is a natural or unnatural amino acid residue;
m is 0, 1, 2, or 3;
R14 is hydrogen or protecting group;
R15 is hydrogen, alkyl or aryl, and pharmaceutically acceptable salts and prodrugs thereof.
In a particular embodiment, n is 3 or 4.
[0152] In another embodiment, the invention includes a composition having a therapeutic
compound that is a compound of the Formula VI-A:

wherein:
n is 1, 2, 3; 4, S, 6, 7, 8, 9, or 10;
A is oxygen or nitrogen;
R11 is hydrogen, salt-forming cation, ester forming group, -(CH2)x-Q, or when A is nitrogen, A and R11 taken together may be a natural or unnatural amino acid residue or a salt or ester
thereof;
Q is hydrogen, thiazolyl, triazolyl, imidazolyl, benzothiazolyl, or benzoimidazolyl;
x is 0, 1, 2, 3, or 4;
R19 is hydrogen, alkyl or aryl;
Y1 is oxygen, sulfur, or nitrogen;
Y2 is carbon, nitrogen, or oxygen;
R20 is hydrogen, alkyl, amino, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl,
thiazolyl, triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, or benzoimidazolyl;
R21 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl,
thiazolyl, triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, benzoimidazolyl, or
absent if Y2 is oxygen;
R22 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl,
thiazolyl, triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, benzoimidazolyl; or
R22 is hydrogen, hydroxyl, alkoxy or aryloxy if Y1 is nitrogen; or R22 is absent if Y1 is oxygen or sulfur; or R22 and R21 may be linked to form a cyclic moiety if Y1 is nitrogen;
or pharmaceutically acceptable salts thereof. In a particular embodiment, n is 3 or
4.
[0153] In another embodiment, the invention includes a composition having a therapeutic
compound that is a compound of Formula VII-A:

wherein:
n is 2, 3, or 4;
A is oxygen or nitrogen;
R11 is hydrogen, salt-forming cation, ester forming group, -(CH2)x-Q, or when A is nitrogen, A and R11 taken together may be a natural or unnatural amino acid residue or a salt or ester
thereof;
Q is hydrogen, thiazolyl, triazolyl, imidazolyl, benzothiazolyl, or benzoimidazolyl;
x is 0, 1, 2, 3, or 4;
G is a direct bond or oxygen, nitrogen, or sulfur;
z is 0, 1, 2, 3, 4, or 5;
m is 0 or 1;
R24 is selected from the group consisting of hydrogen, alkyl, mercaptoalkyl, alkenyl,
alkynyl, aroyl, alkylcarbonyl, aminoalkylcarbonyl, cycloalkyl, aryl, arylalkyl, thiazolyl,
triazolyl, imidazolyl, benzothiazolyl, and benzoimidazolyl;
each R25 is independently selected from hydrogen, halogen, cyano, hydroxyl, alkoxy, thiol,
amino, nitro, alkyl, aryl, carbocyclic, or heterocyclic, and pharmaceutically acceptable
salts thereof. In a particular embodiment, n is 3 or 4.
[0154] Additional compounds include, for example, therapeutic compounds of Formula (I-B):

wherein:
X is oxygen or nitrogen;
Z is C=O, S(O)2, or P(O)OR7;
m and n are each independently 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10;
R1 and R7 are each independently hydrogen, metal ion, alkyl, mercaptoalkyl, alkenyl, alkynyl,
cycloalkyl, aryl, a moiety together with X to form a natural or unnatural amino acid
residue, or -(CH2)p-Y;
Y is hydrogen or a heterocyclic moiety selected from the group consisting of thiazolyl,
triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, and benzoimidazolyl;
p is 0, 1, 2, 3, or 4;
R2 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylcarbonyl,
arylcarbonyl, or alkoxycarbonyl;
R3 is hydrogen, amino, cyano, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, heterocyclic,
sunbstituted or unsubstituted aryl, heteroaryl, thiazolyl, triazolyl, tetrazolyl,
imidazolyl, benzothiazolyl, or benzoimidazolyl, and pharmaceutically acceptable salts,
esters, and prodrugs thereof.
[0155] In a further embodiment, m is 0, 1, or 2. In another further embodiment, n is 0,
1, or 2,
e.
g., 1 or 2. In another further embodiment, R
3 is aryl,
e.
g., heteroaryl or phenyl. In yet another embodiment, Z is S(O)
2.
[0156] In another embodiment, the therapeutic compound of the invention is of the Formula
(II-B)

wherein:
X is oxygen or nitrogen;
m and n are each independently 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10;
R1 is hydrogen, metal ion, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl,
or a moiety together with X to form a natural or unnatural amino acid residue, or
-(CH2)p-Y;
Y is hydrogen or a heterocyclic moiety selected from the group consisting of thiazolyl,
triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, and benzoimidazolyl;
each R4 is independently selected from the group consisting of hydrogen, halogen, hydroxyl,
thiol, amino, cyano, nitro, alkyl, aryl, carbocyclic or heterocyclic;
R2 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylcarbonyl,
arylcarbonyl, or alkoxycarbonyl;
J is absent, oxygen, nitrogen, sulfur, or a divalent link-moiety consisting of, without
limitation to, lower alkylene, alkylenyloxy, alkylenylamino, alkylenylthio, alkylenyloxyalkyl,
alkylenylamomalkyl, alkylenylthioalkyl, alkenyl, alkenyloxy, alkenylamino, or alkenylthio;
and
q is 1, 2, 3, 4, or 5, and phannaceutically acceptable salts, esters and prodrugs
thereof. In a particular embodiment, n is 1 or 2.
[0157] In a yet further embodiment, the therapeutic compound of the invention is of the
Formula (III-B):

wherein:
X is oxygen or nitrogen;
m and n are each independently 0, 1, 2, 3, 4, S, 6, 7, 8, 9 or 10;
q is 1, 2, 3, 4, or 5;
R1 is hydrogen, metal ion, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl,
or a moiety together with X to form a natural or unnatural amino acid residue, or
-(CH2)p-Y;
Y is hydrogen or a heterocyclic moiety selected from the group consisting of thiazolyl,
triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, and benzoimidazolyl;
pis 0, 1, 2, 3, or 4;
R2 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylcarbonyl,
arylcarbonyl, or alkoxycarbonyl;
R5 is selected from the group consisting of hydrogen, halogen, amino, nitro, hydroxy,
carbonyl, thiol, carboxy, alkyl, alkoxy, alkoxycarbonyl, acyl, alkylamino, and acylamino;
J is absent, oxygen, nitrogen, sulfur, or a divalent link-moiety consisting of, without
limitation to, lower alkylene, alkylenyloxy, alkylenylamino, alkylenylthio, alkylenyloxyalkyl,
alkylenylamonialkyl, alkylenylthioalkyl, alkenyl, alkenyloxy, alkenylamino, or alkenylthio;
and
pharmaceutically acceptable salts, esters, and prodrugs thereof. In a particular embodiment,
n is 1 or 2.
[0158] In yet another embodiment, the therapeutic compound of the invention is:

wherein:
X is oxygen or nitrogen;
m and n are each independently 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10;
q is 1, 2, 3, 4, or 5;
R1 is hydrogen, metal ion, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl,
or a moiety together with X to form a natural or unnatural amino acid residue, or
-(CH2)p-Y;
Y is hydrogen or a heterocyclic moiety selected from the group consisting of thiazolyl,
triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, and benzoimidazolyl;
p is 0, 1, 2, 3, or 4;
R2 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylcarbonyl,
arylcarbonyl, or alkoxycarbonyl;
R5 is selected from the group consisting of hydrogen, halogen, amino, nitro, hydroxy,
carbonyl, thiol, carboxy, alkyl, alkoxy, alkoxycarbonyl, acyl, alkylamino, acylamino;
and
pharmaceutically acceptable salts, esters, and prodrugs thereof. In a further embodiment,
m is 0. In a particular embodiment, n is 1 or 2.
[0159] In another embodiment, the invention pertains to therapeutic compounds of Formula
(V-B):

wherein:
Z is C=O, S(O)2, or P(O)OR7;
R1 is hydrogen, metal ion, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl,
or a moiety together with X to form a natural or unnatural amino acid residue, or
-(CH2)p-Y;
Y is hydrogen or a heterocyclic moiety selected from the group consisting of thiazolyl,
triazolyl, tetrazolyl, imidazolyl, benzothiazolyl, and benzoimidazolyl;
m and n are each independently 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10;
R2 is hydrogen, alkyl, mercaptoalkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylcarbonyl,
arylcarbonyl, or alkoxycarbonyl; and
R6 is a substituted or unsubstituted heterocyclic moiety. In a further embodiment, m
is 0 or 1. In another embodiment, n is 0 or 1. In another further embodiment, R6 is thiazolyl, oxazoylyl, pyrazolyl, indolyl, pyridinyl, thiazinyl, thiophenyl, benzothiophenyl,
dihydroimidazolyl, dihydrothiazolyl, oxazolidinyl, thiazolidinyl, tetrahydropyrimidinyl,
or oxazinyl. In yet another embodiment, Z is S(O)2. In a particular embodiment, n is 1 or 2.
[0160] In certain embodiments of the invention, the therapeutic formulations of the invention
may contain pharmaceutically acceptable inactive ingredients and a therapeutic compound
having the formula 3-amino-1-propanesulfonate / X, where X is a counter cation or
forms an ester with the sulfonate, wherein the ester or counter cation includes alcohol
radicals or positively charged atoms and moieties, respectively, that do not significantly
affect the ability of the therapeutic formulation to reduce or prevent gastrointestinal
intolerance. In a preferred embodiment, the cationic group is hydrogen (H
+) and the compound is 3-amino-1-propanesulfonic acid. In certain other embodiments,
the hydrogen is replaced by a pharmaceutically acceptable cation or an alcohol radical
or its equivalent, and the compound is a salt or ester of the acid. Pharmaceutically
acceptable salts or esters of the therapeutic compound that do not significantly affect
the ability of the therapeutic formulation to reduce or prevent gastrointestinal intolerance
are within the scope of the invention. For example, the cation can be a pharmaceutically
acceptable alkali metal, alkaline earth, higher valency cation (
e.
g., aluminum salt), polycationic counter ion or ammonium, and the alcohol radical can
be a pharmaceutically acceptable alcohol radical. In a particular embodiment, the
pharmaceutically acceptable salt is a sodium salt, however, other salts are also contemplated
within their pharmaceutically acceptable range.
[0161] In general, the therapeutic compounds appropriate for use in the therapeutic formulations
of the invention comprise at least one sulfonate group covalently bonded to a substituted
or unsubstituted aromatic or aliphatic group.
[0162] In another embodiment, the therapeutic compound has at least one sulfonate group
covalently bonded to a substituted or unsubstituted aliphatic group. W a similar embodiment
the therapeutic compound has at least two sulfonate groups covalently bonded to a
substituted or unsubstituted aliphatic group. In another embodiment, the therapeutic
compound has at least one sulfonate group covalently bonded to a substituted or unsubstituted
lower alkyl group. In a similar embodiment the therapeutic compound has at least two
sulfonate groups covalently bonded to a substituted or unsubstituted lower alkyl group.
[0163] In yet another embodiment, the therapeutic compound has at least one sulfonate group
covalently bonded to an amino-substituted aliphatic group. In a similar embodiment
the therapeutic compound has at least two sulfonate groups covalently bonded to an
amino-substituted aliphatic group. In still yet another embodiment, the therapeutic
compound has at least one sulfonate group covalently bonded to an amino-substituted
lower alkyl group. In a similar embodiment the therapeutic compound has at least two
sulfonate groups covalently bonded to, an amino-substituted lower alkyl group.
[0164] A "sulfonate group" as used herein is an -SO
3-H or -SO
3X group bonded to a carbon atom, where X is a cationic group or an ester group. Similarly,
a "sulfonic acid" compound has a -SO
3H group bonded to a carbon atom. A "sulfate" as used herein is an -OSO
3-H or -OSO
3X group bonded to a carbon atom, where X is a cationic group or an ester group; and
a "sulfuric acid" compound has a -OSO
3H group bonded to a carbon atom. According to the invention, a suitable cationic group
may be a hydrogen atom. In certain cases, the cationic group may actually be another
group on the therapeutic compound that is positively charged at physiological pH,
for example an amino group. Such compounds containing such a cationic group covalently
bonded to the therapeutic compound itself may be referred to as an "inner salt" or
"zwitterion." For example, the compound 3-amino-1-propanesulfonic acid may form an
inner salt or zwitterion under appropriate conditions.
[0165] Unless otherwise stipulated, the chemical moieties herein may be substituted or unsubstituted.
In some embodiments, the term "substituted" means that the moiety has substituents
placed on the moiety other than hydrogen which allow the molecule to perform its intended
function. Examples of substituents, which are not intended to be limiting, include
moieties selected from straight or branched alkyl (preferably C
1-C
5), cycloalkyl (preferably C
3-C
8), alkoxy (preferably C
1-C
6)
, thioalkyl (preferably C
1-C
6), alkenyl (preferably C
2-C
6), alkynyl (preferably C
2-C
6), heterocyclic, carbocyclic, aryl (
e.
g., phenyl), aryloxy (
e.
g., phenoxy), aralkyl (
e.
g., benzyl), aryloxyalkyl (
e.
g., phenyloxyalkyl), arylacetamidoyl, alkylaryl, heteroaralkyl, alkylcarbonyl and arylcarbonyl
or other such acyl group, heteroarylcarbonyl, or heteroaryl group, (CR'R")
0-3NR'R" (
e.
g., -NH
2), (CR'R")
0-3CN (
e.
g., -CN), -NO
2, halogen (
e.
g., -F, -Cl, -Br, or -I), (CR'R")
0-3C(halogen)
3 (
e.
g., -CF
3), (CR'R")
0-3CH(halogen)
2, (CR'R")
0-3CH
2(halogen), (CR'R")
0-3CONR'R", (CR'R")
0-3(CNH)NR'R", (CR'R")
0-3S(O)
1-2NR'R", (CR'R")
0-3CHO, (CR'R")
0-3O(CR'R")
0-3H, (CR'R")
0-3S(O)
0-3R' (
e.
g., -SO
3H, -OSO
3H), (CR'R")
0-3O(CR'R")
0-3H (
e.
g., -CH
2OCH
3 and -OCH
3), (CR'R")
0-3S(CR'R")
0-3H (
e.
g., -SH and -SCH3), (CR'R")
0-3OH (
e.
g., -OH), (CR'R")
0-3COR', (CR'R")
0-3(substituted or unsubstituted phenyl), (CR'R")
0-3(C
3-C
8 cycloalkyl), (CR'R')
0-3CO
2R' (
e.
g., -CO
2H), or (CR'R')
0-3OR' group, or the side chain of any naturally occurring amino acid; wherein R' and
R" are each independently hydrogen, a C
1-C
5 alkyl, C
2-C
5 alkenyl, C
2-C
5 alkynyl, or aryl group. "Substituents" may also include, for example, halogen, hydroxyl,
alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, carboxylate,
alkylcarbonyl, alkoxycarbonyl, aminocarbonyl; alkylthiocarbonyl, alkoxyl, phosphate,
phosphonato, phosphinato, cyano, amino (including alkyl amino, dialkylamino, arylamino,
diarylamino, and alkylarylamino), acylamino (including alkylcarbonylamino, arylcarbonylamino,
carbamoyl and ureido), imino, sulfhydryl, alkylthio, arylthio, thiocarboxylate, sulfate,
sulfonato, sulfamoyl, sulfonamido, nitro, trifluoromethyl, azido, heterocyclyl, aralkyl,
or an aromatic or heteroaromatic moiety.
[0166] It will be understood that "substitution" or "substituted with" includes the implicit
proviso that such substitution is in accordance with permitted valence of the substituted
atom and the substituent, and that the substitution results in a stable compound,
e.
g., which does not spontaneously undergo transformation such as by rearrangement, cyclization,
elimination, etc. As used herein, the term "substituted" includes all permissible
substituents of organic compounds. In a broad aspect, the permissible substituents
include acyclic and cyclic, branched and unbranched, carbocyclic and heterocyclic,
aromatic and nonaromatic substituents of organic compounds. The permissible substituents
can be one or more and the same or different for appropriate organic compounds.
[0167] In certain embodiments, a "substituent" may be selected from the group consisting
of, for example, halogeno, trifluoromethyl, nitro, cyano, C
1-C
6 alkyl, C
2-C
6 alkenyl, C
2-C
6 alkynyl, C
1-C
6 alkylcarbonyloxy, arylcarbonyloxy, C
1-C
6 alkoxycarbonyloxy, aryloxycarbonyloxy, C
1-C
6 alkylcarbonyl, C
1-C
6 alkoxycarbonyl, C
1-C
6 alkoxy, C
1-C
6 alkylthio, arylthio, heterocyclyl, aralkyl, and aryl (including heteroaryl) groups.
[0168] In general, the therapeutic compounds of the invention are small molecules. A "small
molecule" refers to a compound that is not itself the product of gene transcription
or translation (
e.
g., protein, RNA, or DNA). Preferably a "small molecule" is a low molecular weight
compound,
e.
g., less than 7500 amu, more preferably less 5000 amu and even more preferably less
than 1000 amu.
[0169] The term "amine" or "amino," as used herein, refers to an unsubstituted or substituted
moiety of the formula -NR
aR
b, in which R
a and R
b are each independently hydrogen, alkyl, aryl, or heterocyclyl, or R
a and R
b, taken together with the nitrogen atom to which they are attached, form a cyclic
moiety having from 3 to 8 atoms in the ring. Thus, the term amino includes cyclic
amino moieties such as piperidinyl or pyrrolidinyl groups, unless otherwise stated.
Thus, the term "alkylamino" as used herein means an alkyl group having an amino group
attached thereto. Suitable alkylamino groups include groups having 1 to about 12 carbon
atoms, for example, to about 6 carbon atoms. The term amino includes compounds or
moieties in which a nitrogen atom is covalently bonded to at least one carbon or heteroatom.
The term "dialkylamino" includes groups wherein the nitrogen atom is.bound to at least
two alkyl groups. The term "arylamino" and "diarylamino" include groups wherein the
nitrogen is bound to at least one or two aryl groups, respectively. The term "alkylarylamino"
refers to an amino group which is bound to at least one alkyl group and at least one
aryl group. The term "alkaminoalkyl" refers to an alklyl, alkenyl, or alkynyl group
substituted with an alkylamino group. The term "amide" or "aminocarbonyl" includes
compounds or moieties which contain a nitrogen atom which is bound to the carbon of
a carbonyl or a thiocarbonyl group.
[0170] The term "aliphatic group" includes organic compounds characterized by straight or
branched chains, typically having between 1 and 22 carbon atoms. Aliphatic groups
include alkyl groups, alkenyl groups and alkynyl groups. The chains may be branched
or cross-linked. Alkyl groups include saturated hydrocarbons having one or more carbon
atoms, including straight-chain alkyl groups and branched-chain alkyl groups. The
term "alicyclic group" includes closed ring structures of three or more carbon atoms.
Alicyclic groups include cycloparaffins or naphthenes that are saturated cyclic hydrocarbons,
cycloolefins which are unsaturated with two or more double bonds, and cycloacetylenes
which have a triple bond. They do not include aromatic groups. Examples of cycloparaffins
include cyclopropane, cyclohexane, and cyclopentane. Examples of cycloolefins include
cyclopentadiene and cyclooctatetraene. Alicyclic groups also include polycyclic rings,
e.
g., fused ring structures, and substituted alicyclic groups such as alkyl substituted
alicyclic groups. "Polycyclyl" or "polycyclic group" includes two or more cyclic rings
(
e.
g., cycloalkyls, cycloalkenyls, cycloalkynyls, aryls or heterocyclyls) in which one
or more carbons are common to two adjoining rings,
e.
g., the rings are "fused rings" or spiro-rings. Rings that are joined through non-adjacent
atoms are termed "bridged" rings.
[0171] As used herein, "alkyl" groups include saturated hydrocarbons having one or more
carbon atoms, including straight-chain alkyl groups,
e.
g., methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, etc.;
cyclic alkyl groups (or "cycloalkyl" or "alicyclic" or "carbocyclic" groups),
e.
g., cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, etc.; branched-chain
alkyl groups,
e.
g., isopropyl,
tert-butyl,
sec-butyl, isobutyl, etc.; and alkyl-substituted alkyl groups,
e.
g., alkyl-substituted cycloalkyl groups and cycloalkyl-substituted alkyl groups.
[0172] Accordingly, the invention relates to, for example, substituted or unsubstituted
alkylsulfonic acids that are substituted or unsubstituted straight-chain alkylsulfonic
acids, substituted or unsubstituted cycloalkylsulfonic acids, and substituted or unsubstituted
branched-chain alkylsulfonic acids.
[0173] In certain embodiments, a straight-chain or branched-chain alkyl group may have 30
or fewer carbon atoms in its backbone,
e.
g., C
1-C
30 for straight-chain or C
3-C
30 for branched-chain. In certain embodiments, a straight-chain or branched-chain alkyl
group may have 20 or fewer carbon atoms in its backbone,
e.
g., C
1-C
20 for straight-chain or C
3-C
20 for branched-chain, and more particularly, for example, 18 or fewer. Additionally,
example cycloalkyl groups have from 4-10 carbon atoms in their ring structure,
e.
g., 4-7 carbon atoms in the ring structure.
[0174] The term "lower alkyl" refers to alkyl groups having from 1 to 8 carbons in the chain,
and to cycloalkyl groups having from 3 to 8 carbons in the ring structure. Unless
the number of carbons is otherwise specified, "lower" as in "lower alkyl," means that
the moiety has at least one and less than about 8 carbon atoms. In certain embodiments,
a straight-chain or branched-chain lower alkyl group has 6 or fewer carbon atoms in
its backbone (
e.
g., C
1-C
6 for straight-chain, C
3-C
6 for branched-chain),for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl,
sec-butyl, and
tert-butyl. Likewise, cycloalkyl, groups may have from 3-8 carbon atoms in their ring
structure, for example, 5 or 6 carbons in the ring structure. The term "C1-C6" as
in "C1-C6 alkyl" means alkyl groups containing 1 to 6 carbon atoms.
[0175] Moreover, unless otherwise specified the term alkyl includes both "unsubstituted
alkyls" and "substituted alkyls," the latter of which refers to alkyl groups having
substituents replacing one or more hydrogens on one or more carbons of the hydrocarbon
backbone. Such substituents may include, for example, alkenyl, alkynyl, halogeno,
hydroxyl, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy,
carboxylate, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl,
dialkylaminocarbonyl, alkylthiocarbonyl, alkoxyl, phosphate, phosphonato, phosphinato,
cyano, amino (including alkyl amino, dialkylamino, arylamino, diarylamino, and alkylarylamino),
acylamino (including alkylcarbonylamino, arylcarbonylamino, carbamoyl and ureido),
imino, sulfhydryl, alkylthio, arylthio, thiocarboxylate, sulfates, alkylsulfinyl,
sulfonato, sulfamoyl, sulfonamido, nitro, trifluoromethyl, cyano, azido, heterocyclyl,
alkylaryl, or aromatic (including heteroaromatic) groups.
[0176] The terms "alkenyl" and "alkynyl" refer to unsaturated aliphatic groups analogous
to alkyl, including straight and branched chains, and cyclical structures, but which
contain at least one double or triple bond respectively. Suitable alkenyl and alkynyl
groups include groups having 2 to about 12 carbon atoms, preferably from 2 to about
6 carbon atoms.
[0177] The term "aromatic group" includes unsaturated cyclic hydrocarbons containing one
or more rings. In general, the term "aryl" includes groups, including 5- and 6-membered
single-ring aromatic groups that may include from zero to four heteroatoms, for example,
groups derived from benzene, pyrrole, furan, thiophene, thiazole, isothiaozole, imidazole,
triazole, tetrazole, pyrazole, oxazole, isooxazole, pyridine, pyrazine, pyridazine,
and pyrimidine, and the like. Furthermore, the term aryl includes multicyclic aryl
groups,
e.
g., groups derived from tricyclic, bicyclic,
e.
g., naphthalene, benzoxazole, benzodioxazole, benzothiazole, benzoimidazole, benzothiophene,
methylenedioxyphenyl, quinoline, isoquinoline, napthyridine, indole, benzofuran, purine,
benzofuran, deazapurine, or indolizine. Those aryl groups having heteroatoms in the
ring structure may also be referred to as "aryl heterocycles," "heteroaryls," or "heteroaromatics".
[0178] Aryl groups may also be fused or bridged with alicyclic or heterocyclic rings which
are not aromatic so as to form a polycycle (
e.
g., tetralin). Those aryl groups having heteroatoms in the ring structure may also
be referred to as aryl heterocycles, heterocycles, heteroaryls, or heteroaromatics,
which, for example, include any ring formed that incorporates a heteroatom or an atom
that is not carbon. The ring may be saturated or unsaturated and may contain one or
more double bonds. Examples of some heterocyclic groups include pyridyl, furanyl,
thiophenyl, morpholinyl, and indolyl groups.
[0179] The term "heteroatom" includes atoms of any element other than carbon or hydrogen.
Preferred heteroatoms are nitrogen, oxygen, sulfur and phosphorus. Heterocyclic groups
also include closed ring structures in which one or more of the atoms in the ring
is an element other than carbon, for example, nitrogen, sulfur, or oxygen. Heterocyclic
groups may be saturated or unsaturated and heterocyclic groups such as pyrrole and
furan may have aromatic character. They include fused ring structures such as quinoline
and isoquinoline. Other examples of heterocyclic groups include pyridine and purine.
Examples of heteroaromatic and heteroalicyclic groups may have 1 to 3 separate or
fused rings with 3 to about 8 members per ring and one or more N, O, or S atoms,
e.
g., coumarinyl, quinolinyl, pyridyl, pyrazinyl, pyrimidyl, furyl, pyrrolyl, thienyl,
thiazolyl, oxazolyl, imidazolyl, indolyl, benzofuranyl, benzothiazolyl, tetrahydrofuranyl,
tetrahydropyranyl, piperidinyl, morpholino, and pyrrolidinyl.
III. Therapeutic Formulations of the Invention
[0180] The invention also relates to a pharmaceutical composition for inhibiting amyloid
deposition in a subject comprising a therapeutic formulation as defined herein, in
an amount sufficient to inhibit amyloid deposition in a subject, and a pharmaceutically
acceptable vehicle.
[0181] In another embodiment, the invention is a pharmaceutical composition for treating
amyloidosis in a subject comprising a therapeutic formulation as described herein,
in an amount sufficient to inhibit amyloid deposition in a subject, and a pharmaceutically
acceptable vehicle.
[0182] In another embodiment, the present invention pertains to a pharmaceutical composition
for treating or preventing an amyloid-related disease,
e.
g., type II diabetes or Aβ-related disease,
e.
g., Alzheimer's disease, cerebral amyloid angiopathy, inclusion body myositis, macular
degeneration, Down's syndrome, and hereditary cerebral hemorrhage, comprising a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance, in an amount sufficient to prevent or treat
an amyloid-related disease in a subject, and a pharmaceutically acceptable vehicle.
[0183] In certain embodiments, the therapeutic compound of the therapeutic formulations
of the invention interacts with a binding site for a basement membrane glycoprotein
or proteoglycan in an amyloidogenic protein and thereby inhibits the binding of the
amyloidogenic protein to the basement membrane constituent. Basement membrane glycoproteins
and proteoglycans include laminin, collagen type IV, fibronectin, agrin, perlecan,
and heparan sulfate proteoglycan (HSPG). In a particular embodiment, the therapeutic
compound inhibits an interaction between an amyloidogenic protein and agrin, perlecan,
or HSPG. Furthermore, consensus binding site motifs for HSPG in amyloidogenic proteins
have been described (see
e.
g.
Cardin and Weintraub (1989) Arteriosclerosis 9:21-32).
[0184] Accordingly, the invention includes a packaged pharmaceutical composition for inhibiting
amyloid deposition in a subject, comprising a container holding a therapeutically
effective amount of a therapeutic formulation as described herein; and instructions
for using the compound for inhibiting amyloid deposition in a subject. In certain
embodiments, the disease related to such amyloid deposition is selected from the group
consisting of Alzheimer's disease, cerebral amyloid angiopathy, inclusion body myositis,
macular degeneration, Down's syndrome, Mild Cognitive Impairment, type II diabetes,
and hereditary cerebral hemorrhage.
[0185] The term "container" includes any receptacle for holding the therapeutic formulation.
For example, in one embodiment, the container is the packaging that contains the formulation.
In other embodiments, the container is not the packaging that contains the formulation,
i.
e., the container is a receptacle, such as a box or vial that contains the packaged
formulation or unpackaged formulation and the instructions for use of the formulation.
Moreover, packaging techniques are well known in the art. It should be understood
that the instructions for use of the therapeutic formulation may be contained on the
packaging containing the therapeutic formulation, and as such the instructions form
an increased functional relationship to the packaged product. However, it should be
understood that the instructions can contain information pertaining to the compound's
ability to perform its intended function,
e.
g., reduce or prevent gastrointestinal intolerance.
[0186] In another embodiment, the invention includes a packaged pharmaceutical composition
for treating amyloidosis in a subject, comprising a container holding a therapeutically
effective amount of a therapeutic formulation as described herein; and instructions
for using the compound for treating amyloidosis in a subject.
[0187] In yet another embodiment, the invention includes a packaged pharmaceutical composition
for treating a viral infection, comprising a container holding a therapeutically effective
amount of a therapeutic formulation as described herein; and instructions for using
the compound for treating the viral infection.
[0188] Another embodiment of the invention pertains to a packaged pharmaceutical composition
for treating a bacterial infection, comprising a container holding a therapeutically
effective amount of a therapeutic formulation of the invention; and instructions for
using the therapeutic compound for treating the bacterial infection.
[0189] Another embodiment of the invention pertains to a packaged pharmaceutical composition
for inhibiting the binding of a chemokine to a glycosaminoglycan, comprising a container
holding a therapeutically effective amount of a therapeutic formulation of the invention;
and instructions for using the therapeutic compound for inhibiting the binding of
a chemokine to a glycosaminoglycan.
[0190] The therapeutic formulations of the invention may also include combinations of two
or more therapeutic compounds. Accordingly, the invention relates to a therapeutic
formulation for the treatment of Alzheimer's disease comprising 3-amino-1-propanesulfonic
acid and a second drug that targets additional symptoms,
e.
g., secondary symptoms of Alzheimer's disease. In certain embodiments, the "second
drug" may be a cholinesterase inhibitor, such as an acetyl-cholinesterase or butyrylcholinesterase
inhibitor,
e.
g., tacrine, donepezil, rivastigmine, or galantamine. In another embodiment, the second
drug may be an NMDA receptor antagonist, such as memantine. In yet another embodiment,
the the second drug may be an antioxidant, vitamin E, estrogen, a nonsteroidal anti-inflammatory
agent (
e.
g., aspirin or naproxen), a cholesterol modifying agent such as statin, or ginkgo biloba.
[0191] The therapeutic formulation of the invention may further include a pharmaceutically
acceptable vehicle. As used herein "pharmaceutically acceptable vehicle" includes
any and all coatings, antibacterial and antifungal agents, and absorption delaying
agents, and the like that are compatible with the activity of the compound, are physiologically
acceptable to the subject, and that do not significantly affect the ability of the
therapeutic formulation to perform its intended function or do not significantly affect
the ability of the therapeutic formulation to reduce or prevent gastrointestinal intolerance.
Supplementary active compounds can also be incorporated into the compositions as long
as they do not significantly affect the ability of the therapeutic formulation to
reduce or prevent nausea.
[0192] Active compounds are administered at a therapeutically effective dosage sufficient
to inhibit amyloid deposition in a subject. A "therapeutically effective dosage" preferably
inhibits amyloid deposition by at least about 20%, more preferably by at least about
40%, even more preferably by at least about 60%, and still more preferably by at least
about 80% relative to untreated subjects. The ability of a compound to inhibit amyloid
deposition can be evaluated in an animal model system that may be predictive of efficacy
in inhibiting amyloid deposition in human diseases. Alternatively, the ability of
a compound to inhibit amyloid deposition can be evaluated by examining the ability
of the compound to inhibit an interaction between an amyloidogenic protein and a basement
membrane constituent,
e.
g., as described in
U.S. Patent No. 5,164,295, which is hereby expressly incorporated herein by reference, or by the mass spectroscopy
assay described in Example 5.
[0193] The term "subject" includes living organisms in which amyloidosis can occur, or which
are susceptible to amyloid diseases,
e.
g., Alzheimer's disease, Down's syndrome, Mild Cognitive Impairment, CAA, dialysis-related
(β
2M) amyloidosis, secondary (AA) amyloidosis, primary (AL) amyloidosis, hereditary amyloidosis,
diabetes, etc. Examples of subjects include humans, monkeys, cows, sheep, goats, dogs,
and cats. The language "subject" includes animals (
e.
g., mammals,
e.
g., cats, dogs, horses, pigs, cows, goats, sheep, rodents,
e.
g., mice or rats, rabbits, squirrels, bears, primates (
e.
g., chimpanzees, monkeys, gorillas, and humans)), as well as chickens, ducks, peking
ducks, geese, and transgenic species thereof.
[0194] In certain embodiments of the invention, the subject is in need of treatment by the
methods of the invention, and is selected for treatment based on this need. A subject
in need of treatment is art-recognized, and includes subjects that have been identified
as having a disease or disorder related to amyloid-deposition or amyloidosis, having
a symptom of such a disease or disorder, or at risk of such a disease or disorder,
and would be expected, based on diagnosis,
e.
g., medical diagnosis, to benefit from treatment (
e.
g., curing, healing, preventing, alleviating, relieving, altering, remedying, ameliorating,
improving, or affecting the disease or disorder, the symptom of the disease or disorder,
or the risk of the disease or disorder).
[0195] Administration of the compositions of the present invention to a subject to be treated
can be carried out using known procedures, at dosages and for periods of time effective
to inhibit amyloid deposition in the subject. An effective amount of the therapeutic
compound necessary to achieve a therapeutic effect may vary according to factors such
as the amount of amyloid already deposited at the clinical site in the subject, the
age, sex, and weight of the subject, and the ability of the therapeutic compound to
inhibit amyloid deposition in the subject. Dosage regimens can be adjusted to provide
the optimum therapeutic response. For example, several divided doses may be administered
daily or the dose may be proportionally reduced as indicated by the exigencies of
the therapeutic situation. A non-limiting example of an effective dose range for a
therapeutic compound of the invention (
e.
g., 3-amino-1-propanesulfonic acid) is between 1 and 500 mg/kg of body weight/per day.
One of ordinary skill in the art would be able to study the relevant factors and make
the determination regarding the effective amount of the therapeutic compound without
undue experimentation.
[0196] Actual dosage levels of the active ingredients in the pharmaceutical compositions
of this invention may be varied so as to obtain an amount of the active ingredient
which is effective to achieve the desired therapeutic response for a particular patient,
composition, and mode of administration, without being toxic to the patient.
[0197] In particular, the selected dosage level will depend upon a variety of factors including
the activity of the particular compound of the present invention employed, the time
of administration, the rate of excretion of the particular compound being employed,
the duration of the treatment, other drugs, compounds or materials used in combination
with the particular compound employed, the age, sex, weight, condition, general health
and prior medical history of the patient being treated, and like factors well known
in the medical arts.
[0198] A medical doctor,
e.
g., physician or veterinarian, having ordinary skill in the art can readily determine
and prescribe the effective amount of the pharmaceutical composition required. For
example, the physician or veterinarian could start doses of the compounds of the invention
employed in the pharmaceutical composition at levels lower than that required in order
to achieve the desired therapeutic effect and gradually increase the dosage until
the desired effect is achieved.
[0199] The regimen of administration can affect what constitutes an effective amount. The
therapeutic formulations can be administered to the subject either prior to or after
the onset of amyloidosis. Further, several divided dosages, as well as staggered dosages,
can be administered daily or sequentially, or the dose can be continuously infused,
or can be a bolus injection. Further, the dosages of the therapeutic formulations
can be proportionally increased or decreased as indicated by the exigencies of the
therapeutic or prophylactic situation.
[0200] In particular embodiments, it is especially advantageous to formulate compositions
in dosage unit form for ease of administration and uniformity of dosage. Dosage unit
form as used herein refers to physically discrete units suited as unitary dosages
for the subjects to be treated; each unit containing a predetermined quantity of therapeutic
compound calculated to produce the desired therapeutic effect in association with
the required pharmaceutical vehicle. The specification for the dosage unit forms of
the invention are dictated by and directly dependent on (a) the unique characteristics
of the therapeutic compound and the particular therapeutic effect to be achieved,
and (b) the limitations inherent in the art of compounding/formulating such a therapeutic
compound for the treatment of amyloid deposition in subjects.
[0201] A further aspect of the invention includes pharmaceutical compositions for treating
amyloidosis; inhibiting amyloid deposition; or preventing or treating amyloid-related
disease,
e.
g., Aβ-related disease,
e.
g., Alzheimer's disease, cerebral amyloid angiopathy, inclusion body myositis, macular
degeneration, Down's syndrome, Mild Cognitive Impairment, and hereditary cerebral
hemorrhage. The therapeutic formulations described hereinbefore, can be incorporated
into a pharmaceutical composition containing a pharmaceutically acceptable vehicle
and an amount of a therapeutic compound formulated to significantly reduce or prevent
gastrointestinal intolerance, in an amount sufficient to treat or inhibit amyloidosis;
inhibit amyloid deposition; or prevent or treat amyloid-related disease. In one embodiment,
the pharmaceutical compositions of the invention include a therapeutic compound having
the formula 3-amino-1-propanesulfonate / X, where X is an ester or a counter cation,
wherein the ester or counter cation includes alcohol radicals or positively charged
atoms and moieties, respectively, that do not significantly affect the ability of
the therapeutic formulation to reduce or prevent gastrointestinal intolerance. In
a preferred embodiment, the cationic group is hydrogen, H
+, and the compound is 3-amino-1-propanesulfonic acid.
[0202] In yet another embodiment, the invention is a method of formulating a gastrointestinal
intolerance enhanced pharmaceutical composition comprising: combining a pre-selected
therapeutic compound with a pharmaceutically acceptable carrier, wherein the therapeutic
compound is pre-selected for its ability to significantly reduce or prevent gastrointestinal
intolerance, forming a gastrointestinal intolerance enhanced pharmaceutical composition.
[0203] The language "gastrointestinal intolerance enhanced pharmaceutical composition" includes
pharmaceutical compositions containing therapeutic compounds of the invention that
have been chosen by pre-selecting the compound based on its ability to significantly
reduce or prevent gastrointestinal intolerance.
IV. Administration
[0204] Formulations of the present invention include those suitable for oral administration.
The formulations may conveniently be presented in unit dosage form and may be prepared
by any methods well known in the art of pharmacy. The amount of active ingredient
which can be combined with a carrier material to produce a single dosage form will
generally be that amount of the compound which produces a therapeutic effect. Generally,
out of one hundred percent, this amount will range from about 1 percent to about ninety-nine
percent of active ingredient, preferably from about 5 percent to about 70 percent,
most preferably from about 10 percent to about 30 percent.
[0205] Methods of preparing these formulations or compositions include the step of bringing
into association a compound of the present invention with the carrier and, optionally,
one or more accessory ingredients. In general, the formulations are prepared by uniformly
and intimately bringing into association a compound of the present invention with
liquid carriers, or finely divided solid carriers, or both, and then, if necessary,
shaping the product.
[0206] Formulations of the invention suitable for oral administration may be in the form
of capsules, cachets, pills, tablets, lozenges (using a flavored basis, usually sucrose
and acacia or tragacanth), powders, granules, or as a solution or a suspension in
an aqueous or non-aqueous liquid, or as an oil-in-water or water-in-oil liquid emulsion,
or as an elixir or syrup, or as pastilles (using an inert base, such as gelatin and
glycerin, or sucrose and acacia) or as mouth washes and the like, each containing
a predetermined amount of a compound of the present invention as an active ingredient.
A compound of the present invention may also be administered as a bolus, electuary
or paste.
[0207] In solid dosage forms of the invention for oral administration (capsules, tablets,
pills, dragees, powders, granules and the like), the active ingredient is mixed with
one or more pharmaceutically acceptable carriers, such as sodium citrate or dicalcium
phosphate, or any of the following: fillers or extenders, such as starches, lactose,
sucrose, glucose, mannitol, or silicic acid; binders, such as, for example, carboxymethylcellulose,
alginates, gelatin, polyvinyl pyrrolidone, sucrose or acacia; humectants, such as
glycerol; disintegrating agents, such as agar-agar, calcium carbonate, potato or tapioca
starch, alginic acid, certain silicates, and sodium carbonate; solution retarding
agents, such as paraffin; absorption accelerators, such as quaternary ammonium compounds;
wetting agents, such as, for example, cetyl alcohol and glycerol monostearate; absorbents,
such as kaolin and bentonite clay; lubricants, such as talc, calcium stearate, magnesium
stearate, solid polyethylene glycols, sodium lauryl sulfate, and mixtures thereof;
and coloring agents. In the case of capsules, tablets and pills, the pharmaceutical
compositions may also comprise buffering agents. Solid compositions of a similar type
may also be employed as fillers in soft and hard-filled gelatin capsules using such
excipients as lactose or milk sugars, as well as high molecular weight polyethylene
glycols and the like.
[0208] The therapeutic compounds of the invention are effective when administered orally.
Accordingly, a preferred route of administration is oral administration. The therapeutically
active compound may be coated in a material to protect the compound from the action
of acids and other natural conditions which may inactivate the compound. The compounds
of the invention can be formulated to ensure proper distribution
in vivo. For example, the blood-brain barrier (BBB) excludes many highly hydrophilic compounds;
and to ensure that the therapeutic compounds of the invention cross the BBB, they
can be formulated, for example, in liposomes. For methods of manufacturing liposomes,
see,
e.
g.,
U.S. 4,522,811;
5,374,548; and
5,399,331. The liposomes may comprise one or more moieties which are selectively transported
into specific cells or organs ("targeting moieties"), thus providing targeted drug
delivery (see,
e.
g.,
V. V. Ranade (1989) J. Clin. Pharmacol. 29:685). Exemplary targeting moieties include folate or biotin (see,
e.g.,
U.S. 5,416,016 to Low et al.); mannosides (
Umezawa et al., (1988) Biochem. Biophys. Res. Commun. 153:1038); antibodies (
P. G. Bloeman et al. (1995) FEBS Lett. 357:140;
M. Owais et al. (1995) Antimicrob. Agents Chemother. 39:180); surfactant protein A receptor (
Briscoe et al. (1995) Am. J. Physiol. 1233:134); gp120 (
Schreier et al. (1994) J. Biol. Chem. 269:9090); see also K. Keinanen;
M. L. Laukkanen (1994) FEBS Lett. 346:123;
J. J. Killion; I. J. Fidler (1994) Immunomethods 4:273.
[0209] To administer the therapeutic compound it may be necessary to coat the compound with,
or co-administer the compound with, a material to prevent its inactivation. For example,
the therapeutic compound maybe administered to a subject in an appropriate carrier,
for example, liposomes, or a diluent. Liposomes include water-in-oil-in-water CGF
emulsions as well as conventional liposomes (
Strejan, et al., J Neuroimmunol. 7,27 (1984)).
[0210] The therapeutic compound can be orally administered, for example, with an inert diluent
or an assimilable edible carrier. The therapeutic compound and other ingredients may
also be enclosed in a hard or soft shell gelatin capsule, compressed into tablets,
or incorporated directly into the subject's diet. For oral therapeutic administration,
the therapeutic compound may be incorporated with excipients and used in the form
of ingestible tablets, buccal tablets, troches, capsules, elixirs, suspensions, syrups,
wafers, and the like. The percentage of the therapeutic compound in the compositions
and preparations may, of course, be varied. The amount of the therapeutic compound
in such therapeutically useful compositions is such that a suitable dosage will be
obtained.
[0211] The term "pharmaceutically acceptable carrier" includes a pharmaceutically acceptable
material, composition or vehicle, such as a liquid or solid filler, diluent, excipient,
solvent or encapsulating material, involved in carrying or transporting a compound(s)
of the present invention within or to the subject such that it can perform its intended
function. Typically, such compounds are carried or transported from one organ, or
portion of the body, to another organ, or portion of the body. Each carrier must be
"acceptable" in the sense of being compatible with the other ingredients of the formulation,
not injurious to the patient, and in the sense that it does not affect the ability
of the therapeutic formulation to reduce or prevent gastrointestinal intolerance.
Some examples of materials which can serve as pharmaceutically acceptable carriers
include: sugars, such as lactose, glucose and sucrose; starches, such as corn starch
and potato starch; cellulose, and its derivatives, such as sodium carboxymethyl cellulose,
ethyl cellulose and cellulose acetate; powdered tragacanth; malt; gelatin; talc; excipients,
such as cocoa butter and suppository waxes; oils, such as peanut oil, cottonseed oil,
safflower oil, sesame oil, olive oil, corn oil and soybean oil; glycols, such as propylene
glycol; polyols, such as glycerin, sorbitol, mannitol and polyethylene glycol; esters,
such as ethyl oleate and ethyl laurate; agar; buffering agents, such as magnesium
hydroxide and aluminum hydroxide; alginic acid; pyrogen-free water; isotonic saline;
Ringer's solution; ethyl alcohol; phosphate buffer solutions; and other non-toxic
compatible substances employed in pharmaceutical formulations known in the art.
[0212] Wetting agents, emulsifiers and lubricants, such as sodium lauryl sulfate and magnesium
stearate, as well as coloring agents, release agents, coating agents, sweetening,
flavoring and perfuming agents, preservatives and antioxidants can also be present
in the compositions.
[0213] Examples of pharmaceutically acceptable antioxidants include: water soluble antioxidants,
such as ascorbic acid, cysteine hydrochloride, sodium bisulfate, sodium metabisulfite,
sodium sulfite and the like; oil-soluble antioxidants, such as ascorbyl palmitate,
butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), lecithin, propyl gallate,
alpha-tocopherol, and the like; and metal chelating agents, such as citric acid, ethylenediamine
tetraacetic acid (EDTA), sorbitol, tartaric acid, phosphoric acid, and the like.
[0214] A tablet may be made by compression or molding, optionally with one or more accessory
ingredients. Compressed tablets may be prepared using binder (for example, gelatin
or hydroxypropylmethyl cellulose), lubricant, inert diluent, preservative, disintegrant
(for example, sodium starch glycolate or cross-linked sodium carboxymethyl cellulose),
surface-active or dispersing agent. Molded tablets may be made by molding in a suitable
machine a mixture of the powdered compound moistened with an inert liquid diluent.
[0215] The tablets, and other solid dosage forms of the pharmaceutical compositions of the
present invention, such as dragees, capsules, pills and granules, may optionally be
scored or prepared with coatings and shells, such as enteric coatings and other coatings
well known in the pharmaceutical-formulating art. They may also be formulated so as
to provide slow or controlled release of the active ingredient therein using, for
example, hydroxypropylmethyl cellulose in varying proportions to provide the desired
release profile, other polymer matrices, liposomes or microspheres. They may be sterilized
by, for example, filtration through a bacteria-retaining filter, or by incorporating
sterilizing agents in the form of sterile solid compositions which can be dissolved
in sterile water, or some other sterile injectable medium immediately before use.
These compositions may also optionally contain opacifying agents, and/or may contain
agents that release the active ingredient(s) only, or preferentially, in a certain
portion of the gastrointestinal tract, optionally, in a delayed manner. Examples of
embedding compositions which can be used include polymeric substances and waxes. The
active ingredient can also be in micro-encapsulated form, if appropriate, with one
or more of the above-described excipients.
[0216] Powders can contain, in addition to a compound of this invention, excipients such
as lactose, talc, silicic acid, aluminum hydroxide, calcium silicates and polyamide
powder, or mixtures of these substances.
[0217] Liquid dosage forms for oral administration of the compounds of the invention include
pharmaceutically acceptable emulsions, microemulsions, solutions, suspensions, syrups
and elixirs. In addition to the active ingredient, the liquid dosage forms may contain
inert diluents commonly used in the art, such as, for example, water or other solvents,
solubilizing agents and emulsifiers, such as ethyl alcohol, isopropyl alcohol, ethyl
carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene
glycol, oils (in particular, cottonseed, groundnut, corn, germ, olive, castor and
sesame oils), glycerol, tetrahydrofuryl alcohol, polyethylene glycols and fatty acid
esters of sorbitan, and mixtures thereof. Besides inert diluents, the oral compositions
can also include adjuvants such as wetting agents, emulsifying and suspending agents,
sweetening, flavoring, coloring, perfuming and preservative agents.
[0218] Suspensions, in addition to the active compounds, may contain suspending agents as,
for example, ethoxylated isostearyl alcohols, polyoxyethylene sorbitol and sorbitan
esters, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar-agar and
tragacanth, and mixtures thereof.
[0219] These compositions may also contain adjuvants such as preservatives, wetting agents,
emulsifying agents and dispersing agents. Prevention of the action of microorganisms
may be ensured by the inclusion of various antibacterial and antifungal agents, for
example, paraben, chlorobutanol, phenol sorbic acid, and the like. It may also be
desirable to include isotonic agents, such as sugars, sodium chloride, and the like
into the compositions. In addition, prolonged absorption of the injectable pharmaceutical
form may be brought about by the inclusion of agents that delay absorption such as
aluminum monostearate and gelatin.
[0220] The compositions of this invention can also be administered topically to a subject,
e.
g., by the direct laying on or spreading of the composition on the epidermal or epithelial
tissue of the subject, or transdermally
via a "patch". Such compositions include, for example, lotions, creams, solutions, gels
and solids. These topical compositions preferably comprise an effective amount, usually
at least about 0.1 %, and preferably from about 1% to about 5%, of a compound of the
invention. Suitable carriers for topical administration preferably remain in place
on the skin as a continuous film, and resist being removed by perspiration or immersion
in water. Generally, the carrier is organic in nature and capable of having the therapeutic
compound dispersed or dissolved therein. The carrier may include pharmaceutically
acceptable emolients, emulsifiers, thickening agents, solvents and the like.
[0221] In one embodiment, the pharmaceutical formulation comprises greater than about 0.1%"
e.
g., greater than about 1%,
e.
g., greater than about 2%,
e.
g., greater than about 3%,
e.
g., greater than about 4%,
e.
g., greater than about 5%,
e.
g., greater than about 10%,
e.
g., greater than about 20%,
e.
g., greater than about 30%,
e.
g., greater than about 40%,
e.
g., greater than about 50%,
e.
g., greater than about 60%,
e.
g., greater than about 70%,
e.
g., greater than about 80%,
e.
g., greater than about 90%,
e.
g., greater than about 95%,
e.
g., greater than about 99%, of a therapeutic compound,
e.
g., an alkylsulfonic acid,
e.
g., a 3-amino-1-propanesuifonic acid compound, by weight of the formulation. In a specific
embodiment, the pharmaceutical formulation comprises about 12.6% ± 0.5% of the therapeutic
compound by weight of the formulation. In another specific embodiment, the pharmaceutical
formulation comprises about 95.2% ± 0.5% of the therapeutic compound by weight of
the formulation. The remainder of the pharmaceutical formulation may be comprised
of additional agents as described herein.
[0222] In another embodiment, the pharmaceutical formulation comprises greater than about
1%,
e.
g., greater than about 2%,
e.
g., greater than about 3%,
e.
g., greater than about 4%,
e.
g., greater than about 5%,
e.
g., greater than about 6%,
e.
g., greater than about 7%,
e.
g., greater than about 8%,
e.
g., greater than about 9%,
e.
g., greater than about 10%,
e.
g., greater than about 20%,
e.
g., greater than about 30%,
e.
g., greater than about 40%,
e.
g., greater than about 50%,
e.
g., greater than about 60%,
e.
g., greater than about 70%,
e.
g., greater than about 80%,
e.
g., greater than about 90%,
e.
g., greater than about 95%,
e.
g., greater than about 99%, of an additional agent,
e.
g., an agent that modifies the release of the therapeutic compound or an enteric coating,,
by weight of the formulation. It should be understood that these percentages are ranges
that apply to the one or more additional agents of the formulation, independently
or in combination. In certain embodiments the additional agent may be used in the
therapeutic formulation to impart favorable properties,
e.
g., to reduce or prevent gastrointestinal intolerance independently or in conjunction
with other methods of reducing or preventing intolerance. Exemplary additional agents
are described herein. For example, to protect against any possible gastrointestinal
intolerance that could result from the therapeutic formulation, the tablets may be
enteric-coated or a modified-release agent may be added to control any rapid release
of the therapeutic compound in the stomach or intestine. In a specific embodiment,
the pharmaceutical formulation comprises about 9.3 %± 0.5% of the additional agent
by weight of the formulation. In another specific embodiment, the pharmaceutical formulation
comprises about 8.8 %± 0.5% of the additional agent by weight of the formulation.
In another specific embodiment, the pharmaceutical formulation comprises about 5.6
% ± 0.5% of the additional agent by weight of the formulation.
[0223] In specific embodiments of the invention, the therapeutic compound is administered
with an agent selected from the group consisting of an agent that modifies the release
of the therapeutic compound,
e.
g., hydroxypropylmethylcellulose (HPMC), a glidant/diluent,
e.
g., silicated mycrocrystalline, a filler,
e.
g., dibasic calcium phosphate, a binder/desintegrant,
e.
g., Starch® 1500, a lubricant,
e.
g., stearic acid powder or magnesium stearate, a subcoat,
e.
g., Opadry® II White, a topcoat,
e.
g., Opadry® II White or Opadry® Clear, an enteric coat,
e.
g., Acryleze®, and any combination thereof. The following materials are available from
Colorcon (West Point, PA): Starch® 1500, Opadry® II. White, Opadry® Clear, Acryleze®.
Several embodiments of the invention are discussed below in the Exemplification.
Equivalents
[0224] Those skilled in the art will recognize, or be able to ascertain using no more than
routine experimentation and the content of the instant specification, numerous equivalents
to the specific procedures, embodiments, claims, and examples described herein. Such
equivalents are considered to be within the scope of this invention and covered by
the claims appended hereto.
[0225] It is to be understood that wherever values and ranges are provided herein,
e.
g., in ages of subject populations, dosages, and blood levels, all values and ranges
encompassed by these values and ranges, are meant to be encompassed within the scope
of the present invention. Moreover, all values that fall within these ranges, as well
as the upper or lower limits of a range of values are also contemplated by the present
application.
Incorporation by Reference
[0226] The contents of all references, issued patents, and published patent applications
cited throughout this application are hereby incorporated by reference. It should
be understood that the use of any of the compounds described herein or in the applications
identified in "The Related Applications" Section are within the scope of the present
invention and are intended to be encompassed by the present invention and are expressly
incorporated herein at least for these purposes, and are furthermore expressly incorporated
for all other purposes
Examples
[0227] The invention is further illustrated by the following examples which should not be
construed as further limiting the subject invention.
Example 1 - Gelatin Capsules for Oral Administration
[0228] The unit formula of 100 and 400 mg white gelatin capsules is presented in Table 2.
Table 2: Unit Formula for 100 and 400 mg Gelatin Capsules
Ingredient |
Grade |
Function |
Capsules (mg/capsule) |
|
|
|
100 mg |
400 mg |
3-amino-1-propanesulfonic acid, sodium salt |
MS* |
Active Ingredient |
100 mg |
400 mg |
Calcium carbonate |
NF |
Filler |
4.45 |
17.8 |
Magnesium stearate |
NF |
Lubricant |
0.55 |
2.2 |
*MS: Manufacturer's Standard, NF: National Formulary; USP: United States Pharmacopoeia. |
[0229] Results from certain studies have shown that the administration of 3-amino-1-propanesulfonic
acid sodium salt in solid dosage form (capsules) was associated with gastrointestinal
symptoms (
i.
e. nausea and vomiting). Further investigations revealed that the gastrointestinal
symptoms were produced, at least in part, by a local irritation due to the high pH
generated during the dissolution of amino-1-propanesulfonic acid sodium salt into
the stomach. Additional experiments in dogs (in solid dosage form) have shown that
the free acid was better tolerated than the sodium salt form. Furthermore, the non-hygroscopic
nature of the acid form makes it desirable as active pharmaceutical ingredient. To
further protect against any possible gastrointestinal intolerance that could result
from the acid form, the tablets were enteric-coated and a modified-release agent was
added to control any rapid release of the drug in the stomach and the intestine, respectively.
Example 2 - Enteric-Coated Tablets
[0230] The 100 and 400 mg white enteric-coated tablets were prepared according to a formulation
in which the drug substance produced by a process utilizing ion-exchange to remove
sodium was densified by granulation with water because of its low density and fluffiness.
The unit formula of the 100 and 400 mg Enteric-Coated tablets is presented in Table
3.
Table 3: Unit Formula of 100 and 400 Enteric-Coated Tablets
Ingredient |
Grade |
Function |
Enteric-Coated Tablet (mg/tablet) |
|
|
|
100 mg |
400 mg |
Core: |
|
|
|
|
3-amino-1-propanesulfonic acid |
MS* |
Active Ingredient |
100.00 |
400.00 |
Silicated mycrocrystalline cellulose |
NF |
Glidant/Diluent |
350.00 |
70.00 |
Dibasic calcium phosphate |
USP |
Filler |
158.40 |
112.00 |
Hydroxypropylmethylcellulose (HPMC) |
USP |
Drug Release Modifier |
70.00 |
70.00 |
Starch® 1500 |
NF |
Binder/Desintegrant |
11.10 |
37.50 |
Stearic acid powder |
NF |
Lubricant |
7.00 |
7.00 |
Magnesium stearate |
NF |
Lubricant |
1.80 |
0.018 |
Coating: |
|
|
|
|
Opadry® II White |
MS* |
Subcoat |
14.00 |
14.00 |
Acryleze® |
MS* |
Enteric Coat |
42.00 |
42.00 |
Total Weight: |
|
|
756.00 |
756.00 |
*MS: Manufacturer's standard, NF: National Formulary; USP: United States Pharmacopoeia. |
[0231] In vitro (dissolution rate) and PK data from 100 mg enteric-coated tablets used in initial
Phase I studies indicated that these tablets would result in acceptable PK and good
tolerability.
Example 3 - Modified-Release Coated Tablets
[0232] Clinical studies indicated that the role of the enteric-coating and drug release
modifier would be significant in the pharmacokinetic (PK) profile of the drug product
as well as its tolerability. Accordingly, in order to give particular pharmaceutical
performance in terms of PK, tolerability and product stability, drug release modifier
was formulated into the tablet. To improve physical stability of the product in terms
of film coating acceptability and moisture protection capability, under accelerated
conditions, the enteric-coating system was modified by the increase in the amount
of enteric-coating and the addition of a topcoat.
[0233] A 50 mg strength modified-release coated tablet consisting of bulk substance (3-amino-1-propanesulfonic
acid) and inactive ingredients (silicated mycrocrystalline cellulose, dibasic calcium
phosphate, hydroxypropylmethylcellulose, starch, stearic acid, magnesium stearate,
as well as Opadry® II white (subcoat and topcoat) and Acryleze®) was prepared. The
unit formula of the 50 mg modified-release coated tablet is provided in Table 4.
Table 4: Unit Formula of 50 mg Modified-Release Coated Tablets
Ingredient |
Grade |
Function |
Quantity per tablet (mg) |
Quantity per batch (kg) |
Core: |
|
|
|
|
3-amino-1-propanesulfonic acid |
MS* |
Active Ingredient |
50.00 |
0.500 |
Silicated mycrocrystalline cellulose |
NF |
Glidant/Diluent |
174.73 |
1.746 |
Dibasic calcium phosphate |
USP |
Filler |
79.42 |
0.794 |
Hydroxypropylmethylcellulose (HPMC) |
USP |
Drug Release Modifier |
35.00 |
0.350 |
Starch® 1500 |
NF |
Binder/Desintegrant |
5.55 |
0.056 |
Stearic acid powder |
NF |
Lubricant |
3.50 |
0.036 |
Magnesium stearate |
NF |
Lubricant |
1.80 |
0.018 |
Weight: |
|
|
350.00 |
3.500 |
Coating: |
|
- |
|
|
Opadry® II White |
MS* |
Subcoat |
7.00 |
0.072 |
Acryleze® |
MS* |
Enteric Coat |
35.00 |
0.360 |
Opadry® Clear |
MS* |
Topcoat |
3.50 |
0.036 |
Total Weight: |
|
|
395.50 |
3.974 |
*MS: Manufacturer's Standard, NF: National Formulary; USP: United States Pharmacopoeia. |
Example 4 -Modified-Release Coated Tablets
[0234] A slight modification to the coating in the formulation of Example 3 was made: the
Opadry® Clear used as the topcoat in Example 3 was replaced by Opadry® II White, which
is also used for the subcoat. Like Opadry® Clear, Opadry® II White is an HPMC-based
preparation which functions in a sealing capacity and therefore equally functions
to enhance the moisture protection capability of the enteric coat (Acryleze®). The
coating system change of the topcoat was a process change that may be convenient for
the scale-up of the product formulation size,
i.
e., to facilitate the transition from applying one coat to the other during the coating
process by preventing clogging of spray guns during the transition from the enteric
coating step to the topcoat application step during the coating process.
[0235] The unit formula for the 50 mg modified-release coated tablets are represented in
Table 5.
Table 5: Unit Formula of 50 mg Modified-Release Coated Tablets
Ingredient |
Grade |
Function |
Quantity per tablet (mg) |
Quantity per batch (kg) |
Core: |
|
|
|
|
3-amino-1-propanesulfonic acid |
MS* |
Active ingredient |
50.00 |
0.500 |
Silicated mycrocrystalline cellulose |
NF |
Glidant/Diluent |
174.73 |
1.746 |
Dibasic calcium phosphate |
USP |
Filler |
79.42 |
0.794 |
Hydroxypropylmethylcellulose (HPMC) |
USP |
Drug Release Modifier |
35.00 |
0.350 |
Starch® 1500 |
NF |
Binder/Desintegrant |
5.55 |
0.056 |
Stearic acid powder |
NF |
Lubricant |
3.50 |
0.036 |
Magnesium stearate |
NF |
Lubricant |
1.80 |
0.018 |
Weight: |
|
|
350.00 |
3.500 |
Coating: |
|
- |
|
|
Opadry® II White |
MS* |
Subcoat |
7.00 |
0.072 |
Acryieze® |
MS* |
Enteric Coat |
35.00 |
0.360 |
Opadry® II White |
MS* |
Topcoat |
3.50 |
0.036 |
Total Weight: |
|
|
395.50 |
3.974 |
*MS: Manufacturer's Standard, NF: National Formulary; USP: United States Pharmacopoeia. |
[0236] The dissolution profile, carried out according to the USP method (USP 25, Method
B, p. 2017), indicates that the dissolution rate for both of the 50 mg modified release
coated tablets (Examples 3 and 4) is comparable.
[0237] In addition, in order to improve the stability of appearance
i.
e., whiteness, the following modified release coated tablet formulation was prepared,
i.
e., with increased Opadry® II White:
Table 6: Unit Formula of 50 mg Modified-Release Coated Tablets
Ingredient |
Grade |
Function |
Quantity per tablet (mg) |
Quantity per batch (kg) |
Core: |
|
|
|
|
3-amino-1-propanesulfonic acid |
MS* |
Active ingredient |
50.00 |
0.500 |
Silicated mycrocrystalline cellulose |
NF |
Glidant/Diluent |
174.73 |
1.746 |
Dibasic calcium phosphate |
USP |
Filler |
79.42 |
0.794 |
Hydroxypropylmethylcellulose (HPMC) |
USP |
Drug Release Modifier |
35.00 |
0.350 |
Starch® 1500 |
NF |
Binder/Desintegrant |
5.55 |
0.056 |
Stearic acid powder |
NF |
Lubricant |
3.50 |
0.036 |
Magnesium stearate |
NF |
Lubricant |
1.80 |
0.018 |
Weight: |
|
|
350.00 |
3.500 |
Coating: |
|
- |
|
|
Opadry® II White |
MS* |
Subcoat |
7.00 |
0.072 |
Acryleze® |
MS* |
Enteric Coat |
35.00 |
0.360 |
Opadry® II White |
MS* |
Topcoat |
7.00 |
0.072 |
Total Weight: |
|
|
399.00 |
4.004 |
*MS: Manufacturer's Standard, NF: National Formulary; USP: United States Pharmacopoeia. |
Example 5 - Mass Spectnoscopy Assay
[0238] The binding of a compound to amyloid fibrils may be measured using a mass spectroscopy
("MS") assay as described herein below.
[0239] Samples are prepared as aqueous solutions containing 20% ethanol, 200 µM of a test
compound and 20 µM of solubilized Aβ40. The pH value of each sample is adjusted to
7.4 (±0.2) by addition of 0.1% aqueous sodium hydroxide. The solutions are then analyzed
by electrospray ionization mass spectroscopy using a Waters ZQ 4000 mass spectrometer.
Samples are introduced by direct infusion at a flow-rate of 25 µL/min within 2 hr.
after sample preparation. The source temperature is kept at 70°C and the cone voltage
is 20 V for all the analysis. Data is processed using Masslynx 3.5 software.
[0240] The resulting MS assay data provides insight into the ability of compounds to bind
to Aβ.
[0241] The present invention pertains to the following special embodiments:
- 1. A method for inhibiting amyloid deposition in a subject comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
such that amyloid deposition is inhibited.
- 2. The method of item 1, wherein the therapeutic formulation further comprises a therapeutic
compound that is pre-selected for its ability to significantly reduce or prevent gastrointestinal
intolerance.
- 3. The method of item 1, wherein the therapeutic formulation further comprises an
additional agent that significantly reduces or prevents gastrointestinal intolerance.
- 4. The method of item 3, wherein the additional agent is an enteric-coating.
- 5. The method of item 3, wherein the additional agent is and agent that modifies the
release of the therapeutic compound.
- 6. The method of item 1, wherein the therapeutic formulation contains a therapeutic
compound that comprises at least one sulfonate group covalently attached to a substituted
or unsubstituted aromatic or aliphatic molecule.
- 7. A method of treating or preventing an amyloid-related disease in a subject comprising
administering to a subject a therapeutic amount of a therapeutic formulation comprising
a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance, such that the amyloid-related disease is treated or prevented.
- 8. The method of item 7, wherein the amyloid-related disease is an Aβ-related disease.
- 9. The method of item 7, wherein the amyloid-related disease is treated prophylactically
or therapeutically.
- 10. The method of item 7, wherein the amyloid-related disease is selected from the
group consisting of Alzheimer's disease, cerebral amyloid angiopathy, inclusion body
myositis, macular degeneration, Down's syndrome, Mild Cognitive Impairment, and hereditary
cerebral hemorrhage.
- 11. The method of item 7, wherein the amyloid-related disease is type II diabetes.
- 12. The method of item 1 or 7, wherein the therapeutic compound inhibits an interaction
between an amyloidogenic protein and a constituent of a basement membrane to inhibit
amyloid deposition.
- 13. The method of item 1, wherein the therapeutic formulation comprises a therapeutic
compound having the formula 3-amino-1-propanesulfonate / X in an amount sufficient
to inhibit amyloid deposition, wherein X is a counter cation or forms an ester with
the sulfonate, wherein the ester or counter cation includes alcohol radicals or positively
charged atoms and moieties, respectively, that do not significantly affect the ability
of the therapeutic formulation to reduce or prevent gastrointestinal intolerance.
- 14. The method of item 13, wherein the therapeutic compound is 3-amino-1-propanesulfonic
acid.
- 15. The method of item 7, wherein the therapeutic compound is a substituted or unsubstituted
alkylsulfonic acid, substituted or unsubstituted alkylsulfuric acid, substituted or
unsubstituted alkylthiosulfonic acid, substituted or unsubstituted alkylthiosulfuric
acid, or a pharmaceutically acceptable salt thereof.
- 16. The method of item 7, wherein the therapeutic compound is a substituted or unsubstituted
alkylsulfonic acid or a pharmaceutically acceptable salt thereof.
- 17. The method of item 7, wherein the therapeutic compound is a substituted or unsubstituted
lower alkylsulfonic acid or a pharmaceutically acceptable salt thereof.
- 18. The method of item 7, wherein the therapeutic compound is a (substituted- or unsubstituted-amino)-substituted
alkylsulfonic acid or a pharmaceutically acceptable salt thereof.
- 19. The method of item 7, wherein the therapeutic compound is a (substituted- or unsubstituted-amino)-substituted
lower alkylsulfonic acid or a pharmaceutically acceptable salt thereof.
- 20. The method of item 7, wherein the therapeutic compound has the following structure

where Y is -NRaRb or -SO3-X+, wherein n is an integer from 1 to 5; X+ is hydrogen or a cationic group; and Ra and Rb are each independently selected from the group consisting of hydrogen, alkyl, aryl,
or heterocyclyl, or Ra and Rb, taken together with the nitrogen atom to which they are attached, form a cyclic
moiety having from 3 to 8 atoms in the ring.
- 21. The method of item 7, wherein the therapeutic compound has the following structure

- 22. The method of item 7, wherein the therapeutic compound is 3-amino-1-propanesulfonic
acid.
- 23. The method of item 13, wherein the therapeutic formulation is formulate as described
in Example 1, Example 2, Example 3, or Example 4.
- 24. The method of any one of items 1-23, wherein the therapeutic compound is administered
orally.
- 25. A method for inhibiting amyloid deposition in a subject comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
such that the therapeutic compound inhibits an interaction between an amyloidogenic
protein and a constituent of a basement membrane to inhibit amyloid deposition.
- 26. A method for inhibiting amyloid deposition in a subject comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
such that the therapeutic compound inhibits neurodegeneration or cellular toxicity
induced by amyloid.
- 27. A method for inhibiting amyloid deposition in a subject comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
such that the therapeutic compound enhances clearance of amyloid β from the brain.
- 28. The method of any one of items 25-27, wherein the therapeutic formulation comprises
a therapeutic compound having the formula 3-amino-1-propanesulfonate / X in an amount
sufficient to inhibit amyloid deposition, wherein X is a counter cation or forms an
ester with the sulfonate, wherein the ester or counter cation includes alcohol radicals
or positively charged atoms and moieties, respectively, that do not significantly
affect the ability of the therapeutic formulation to reduce or prevent gastrointestinal
intolerance.
- 29. The method of any one of items 25-27, wherein the therapeutic compound is a substituted
or unsubstituted alkylsulfonic acid, substituted or unsubstituted alkylsulfuric acid,
substituted or unsubstituted alkylthiosulfonic acid, substituted or unsubstituted
alkylthiosulfuric acid, or a pharmaceutically acceptable salt thereof.
- 30. The method of any one of items 25-27, wherein the therapeutic compound is a substituted
or unsubstituted alkylsulfonic acid or a pharmaceutically acceptable salt thereof.
- 31. The method of any one of items 25-27, wherein the therapeutic compound is a substituted
or unsubstituted lower alkylsulfonic acid or a pharmaceutically acceptable salt thereof.
- 32. The method of any one of items 25-27, wherein the therapeutic compound is a (substituted-
or unsubstituted-amino)-substituted alkylsulfonic acid or a pharmaceutically acceptable
salt thereof.
- 33. The method of any one of items 25-27, wherein the therapeutic compound is a (substituted-
or unsubstituted-amino)-substituted lower alkylsulfonic acid or a pharmaceutically
acceptable salt thereof.
- 34. The method of item 28, wherein the therapeutic compound has the following structure

where Y is -NRaRb or -SO3-X+, wherein n is an integer from 1 to 5; X+ is hydrogen or a cationic group; and Ra and Rb are each independently selected from the group consisting of hydrogen, alkyl, aryl,
or heterocyclyl, or Ra and Rb, taken together with the nitrogen atom to which they are attached, form a cyclic
moiety having from 3 to 8 atoms in the ring.
- 35. The method of item 28, wherein the therapeutic compound has the following structure

- 36. The method of item 28, wherein the therapeutic compound is 3-amino-1 -propanesulfonic
acid.
- 37. The method of any one of items 25-36, wherein the therapeutic compound is administered
orally.
- 38. A method for inhibiting amyloid deposition in a subject comprising orally administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance,
such that amyloid deposition is inhibited.
- 39. The method of item 38, wherein the therapeutic formulation comprises a therapeutic
compound having the formula 3-amino-1-propanesulfonate / X in an amount sufficient
to inhibit amyloid deposition, wherein X is a counter cation or forms an ester with
the sulfonate, wherein the ester or counter cation includes alcohol radicals or positively
charged atoms and moieties, respectively, that do not significantly affect the ability
of the therapeutic formulation to reduce or prevent gastrointestinal intolerance.
- 40. The method of item 39, wherein the therapeutic compound is 3-amino-1-propanesulfonic
acid.
- 41. The method of item 1, 25, 26, or 27, further comprising administering the therapeutic
compound in a pharmaceutically acceptable vehicle.
- 42. The method of item 39, wherein the therapeutic formulation is formulated as described
in Example 1, Example 2, Example 3, or Example 4.
- 43. The method of item 41, wherein the therapeutic compound is administered with an
agent selected from the group consisting of an agent that modifies the release of
the therapeutic compound, a glidant/diluent, a filler, a binder/desintegrant, a lubricant,
a subcoat, a topcoat, an enteric coat, and any combination thereof.
- 44. The method of item 43, wherein the agent that modifies the release of the therapeutic
compound is hydroxypropylmethylcellulose (HPMC).
- 45. The method of item 43, wherein the glidant/diluent is silicated mycrocrystalline.
- 46. The method of item 43, wherein the filler is dibasic calcium phosphate.
- 47. The method of item 43, wherein the binder/desintegrant is Starch® 1500.
- 48. The method of claim 43, wherein the lubricant is stearic acid powder.
- 49. The method of item 43, wherein the lubricant is magnesium stearate.
- 50. The method of item 43, wherein the subcoat is Opadry® II White.
- 51. The method of item 43, wherein the topcoat is Opadry® II White or Opadry® Clear.
- 52. The method of item 43, wherein the enteric coat is Acryleze®.
- 53. A pharmaceutical composition for inhibiting amyloid deposition in a subject comprising
a therapeutic formulation comprising a therapeutic compound formulated to significantly
reduce or prevent gastrointestinal intolerance, in an amount sufficient to inhibit
amyloid deposition in a subject, and a pharmaceutically acceptable vehicle.
- 54. A pharmaceutical composition for treating amyloidosis comprising a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance, in an amount sufficient to treat amyloidosis
in a subject, and a pharmaceutically acceptable vehicle.
- 55. A pharmaceutical composition for treating or preventing an amyloid-related disease
comprising a therapeutic formulation comprising a therapeutic compound formulated
to significantly reduce or prevent gastrointestinal intolerance, in an amount sufficient
to prevent or treat an amyloid-related disease in a subject, and a pharmaceutically
acceptable vehicle.
- 56. The pharmaceutical composition of item 55, wherein the amyloid-related disease
is an Aβ-related disease.
- 57. The pharmaceutical composition of item 55,wherein the amyloid-related disease
is selected from the group consisting of Alzheimer's disease, cerebral amyloid angiopathy,
inclusion body myositis, macular degeneration, Down's syndrome, Mild Cognitive Impairment,
and hereditary cerebral hemorrhage.
- 58. The pharmaceutical composition of item 55 wherein the amyloid-related disease
is type II diabetes.
- 59. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
formulation is present in an amount sufficient to inhibit an interaction between an
amyloidogenic protein and a constituent of a basement membrane and to inhibit amyloid
deposition in a subject, and a pharmaceutically acceptable vehicle.
- 60. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
formulation is present in an amount sufficient to inhibit neurodegeneration or cellular
toxicity induced by amyloid, and a pharmaceutically acceptable vehicle.
- 61. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
formulation is present in an amount sufficient to enhance clearance of amyloid β from
the brain, and a pharmaceutically acceptable vehicle.
- 62. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
formulation comprises a therapeutic compound having the formula 3-amino-1-propanesulfonate
/ X in an amount sufficient to inhibit amyloid deposition, and a pharmaceutically
acceptable vehicle, wherein X is a counter cation or forms an ester with the sulfonate,
wherein the ester or counter cation includes alcohol radicals or positively charged
atoms and moieties, respectively, which do not significantly affect the ability of
the therapeutic formulation to reduce or prevent gastrointestinal intolerance.
- 63. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
compound is a substituted or unsubstituted alkylsulfonic acid, substituted or unsubstituted
alkylsulfuric acid, substituted or unsubstituted alkylthiosulfonic acid, substituted
or unsubstituted alkylthiosulfuric acid, or a pharmaceutically acceptable salt thereof.
- 64. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
compound is a substituted or unsubstituted alkylsulfonic acid or a pharmaceutically
acceptable salt thereof.
- 65. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
compound is a substituted or unsubstituted lower alkylsulfonic acid or a pharmaceutically
acceptable salt thereof.
- 66. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
compound is a (substituted- or unsubstituted-amino)-substituted alkylsulfonic acid
or a pharmaceutically acceptable salt thereof.
- 67. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
compound is a (substituted- or unsubstituted-amino)-substituted lower alkylsulfonic
acid or a pharmaceutically acceptable salt thereof.
- 68. The pharmaceutical composition of any one of items 53-58, wherein the therapeutic
compound has the following structure

where Y is -NRaRb or -SO3-X+, wherein n is an integer from 1 to 5; X+ is hydrogen or a cationic group; and Ra and Rb are each independently selected from the group consisting of hydrogen, alkyl, aryl,
or heterocyclyl, or Ra and Rb, taken together with the nitrogen atom to which they are attached, form a cyclic
moiety having from 3 to 8 atoms in the ring.
- 69. The pharmaceutical composition of item 62, wherein the therapeutic compound has
the following structure

- 70. The pharmaceutical composition of item 62, wherein the therapeutic compound is
3-amino-1-propanesulfonic acid.
- 71. The pharmaceutical composition of item. 62, wherein the therapeutic formulation
is formulated as described in Example 1, Example 2, Example 3, or Example 4.
- 72. The pharmaceutical composition of item 70, wherein the therapeutic compound is
administered with an agents selected from the group consisting of an agent that modifies
the release of the therapeutic compound, a glidant/diluent, a filler, a binder/desintegrant,
a lubricant, a subcoat, a topcoat, an enteric coat, and any combination thereof.
- 73. The pharmaceutical composition of item 72, wherein the agent that modifies the
release of the therapeutic compound is hydroxypropylmethylcellulose (HPMC).
- 74. The pharmaceutical composition of item 72, wherein the glidant/diluent is silicated
mycrocrystalline.
- 75. The pharmaceutical composition of item 72, wherein the filler is dibasic calcium
phosphate.
- 76. The pharmaceutical composition of item 72, wherein the binder/desintegrant is
Starch 1500.
- 77. The pharmaceutical composition of item 72, wherein the lubricant is stearic acid
powder.
- 78. The pharmaceutical composition of item 72, wherein the lubricant is magnesium
stearate.
- 79. The pharmaceutical composition of item 72, wherein the subcoat is Opadry® II White.
- 80. The pharmaceutical composition of item 72, wherein the topcoat is Opadry® II White
or Opadry® Clear.
- 81. The pharmaceutical composition of item 72, wherein the enteric coat is Acryleze®.
- 82. A method for reducing amyloid deposits in a subject having amyloid deposits, the
method comprising administering to the subject an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance, such that amyloid deposits are reduced in the
subject.
- 83. A method for inhibiting the binding of a chemokine to a glycosaminoglycan in a
subject comprising administering to the subject a therapeutic formulation comprising
a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance, such that the binding of a chemokine to a glycosaminoglycan is inhibited.
- 84. A method for modulating interaction between a bacterium and a glycosaminoglycan
in a human comprising administering to the human an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance.
- 85. A method for treating a bacterial infection in a human comprising administering
to the human an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated to significantly reduce or prevent gastrointestinal intolerance.
- 86. The method of item 85, wherein the bacterial infection is Chlamydia.
- 87. A method for modulating interaction between a virus and a glycosaminoglycan in
a subj ect comprising administering to the subj ect an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance.
- 88. A method for treating a viral infection in a subject comprising administering
to the subject a therapeutic formulation comprising an effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance.
- 89. The method of item 88, wherein the viral infection is HSV.
- 90. A method of preventing, treating or inhibiting cerebral amyloid angiopathy in
a subject, comprising administering an effective amount of a therapeutic formulation
comprising a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance.
- 91. A method of preventing, treating or inhibiting cerebral amyloid angiopathy, comprising
contacting a blood vessel wall cell with a therapeutic formulation therapeutic formulation
comprising a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance, such that cerebral amyloid angiopathy is prevented, treated, or inhibited.
- 92. A method of preventing, treating or inhibiting cerebral amyloid angiopathy, comprising
contacting a blood vessel wall cell with a therapeutic compound of a therapeutic formulation
therapeutic formulation, formulated to significantly reduce or prevent gastrointestinal
intolerance, such that cerebral amyloid angiopathy is prevented, treated, or inhibited.
- 93. A method of preventing or treating Alzheimer's disease in a subject, comprising
administering to the subject an effective amount of a therapeutic formulation comprising
a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance.
- 94. A packaged pharmaceutical composition for inhibiting amyloid deposition in a subject,
comprising a container holding a therapeutically effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance; and instructions for using the compound for
inhibiting amyloid deposition in a subject.
- 95. The packaged pharmaceutical composition of item 94, wherein the disease related
to the amyloid deposition is selected from the group consisting of Alzheimer's disease,
cerebral amyloid angiopathy, inclusion body myositis, macular degeneration, Down's
syndrome, Mild Cognitive Impairment, and hereditary cerebral hemorrhage.
- 96. The packaged pharmaceutical composition of item 94, wherein the disease related
to the amyloid deposition is type II diabetes.
- 97. A packaged pharmaceutical composition for treating amyloidosis in a subject, comprising
a container holding a therapeutically effective amount of a therapeutic formulation
comprising a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance; and instructions for using the compound for treating amyloidosis in a
subject.
- 98. A packaged pharmaceutical composition for treating a viral infection, comprising
a container holding a therapeutically effective amount of a therapeutic formulation
comprising a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance; and instructions for using the compound for treating the viral infection.
- 99. A packaged pharmaceutical composition for treating a bacterial infection, comprising
a container holding a therapeutically effective amount of a therapeutic formulation
comprising a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance; and instructions for using the therapeutic compound for treating the
bacterial infection.
- 100. A packaged pharmaceutical composition for inhibiting the binding of a chemokine
to a glycosaminoglycan, comprising a container holding a therapeutically effective
amount of a therapeutic formulation comprising a therapeutic compound formulated to
significantly reduce or prevent gastrointestinal intolerance; and instructions for
using the therapeutic compound for inhibiting the binding of a chemokine to a glycosaminoglycan.
- 101. A method of making a therapeutic formulation comprising combining a therapeutically
effective amount of a therapeutic compound and a pharmaceutically acceptable vehicle,
wherein the therapeutic formulation is formulated to significantly reduce or prevent
gastrointestinal intolerance.
- 102. A pharmaceutical formulation comprising greater than 5% by weight of 3-amino-1-propanesulfonic
acid.
- 103. The pharmaceutical formulation of item 102, wherein the formulation comprises
greater than 10% by weight of 3-amino-1-propanesulfonic acid.
- 104. The pharmaceutical formulation of item 102, wherein the formulation comprises
greater than 20% by weight of 3-amino-1-propanesulfonic acid.
- 105. The pharmaceutical formulation of item 102, wherein the formulation comprises
greater than 30% by weight of 3-amino-i-propanesulfonic acid.
- 106. The pharmaceutical formulation of item 102, wherein the formulation comprises
greater than 50% by weight of 3-amino-1-propanesulfonic acid.
- 107. The pharmaceutical formulation of item 102, wherein the formulation comprises
greater than 80% by weight of 3-amino-1-propanesulfonic acid.
- 108. The pharmaceutical formulation of item 102, wherein the formulation comprises
greater than 95% by weight of 3-amino-1-propanesulfonic acid.
- 109. A pharmaceutical formulation comprising a therapeutic compound and greater than
1% by weight of an additional agent.
- 110. The pharmaceutical formulation of item 109, wherein the formulation comprises
greater than 2% by weight of the additional agent.
- 111. The pharmaceutical formulation of item 109, wherein the formulation comprises
greater than 3% by weight of the additional agent.
- 112. The pharmaceutical formulation of item 109, wherein the formulation comprises
greater than 4% by weight of the additional agent.
- 113. The pharmaceutical formulation of item 109, wherein the formulation comprises
greater than 5% by weight of the additional agent.
- 114. The pharmaceutical formulation of item 109, wherein the additional agent is an
enteric-coating.
- 115. The pharmaceutical formulation of item 109, wherein the additional agent is an
agent that modifies the release of the therapeutic compound.
- 116. A method for inhibiting amyloid deposition in a subject comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated with an enteric-coating, such that amyloid deposition is inhibited.
- 117. A method for inhibiting amyloid deposition in a subject comprising administering
to the subject an effective amount of a therapeutic formulation comprising a therapeutic
compound formulated with an agent that modifies the release of the therapeutic compound,
such that amyloid deposition is inhibited.
- 118. A pharmaceutical composition for inhibiting amyloid deposition in a subject comprising
a therapeutic compound formulated with an enteric-coating, such that amyloid deposition
is inhibited.
- 119. A pharmaceutical composition for inhibiting amyloid deposition in a subject comprising
a therapeutic compound formulated with an agent that modifies the release of the therapeutic
compound, such that amyloid deposition is inhibited.
- 120. A method of formulating a gastrointestinal intolerance enhanced pharmaceutical
composition comprising:
combining a pre-selected therapeutic compound with a pharmaceutically acceptable carrier,
wherein the therapeutic compound is pre-selected for its ability to significantly
reduce or prevent gastrointestinal intolerance,
forming a gastrointestinal intolerance enhanced pharmaceutical composition.
- 121. The method of item 90, 91, or 92, wherein the cerebral amyloid angiopathy is
associated with Alzheimer's disease, Down's syndrome, normal aging, or a familial
condition related to stroke or dementia.
- 122. A method for preventing or treating amyloid-related disease in a subject comprising
administering to the subject an effective amount of a therapeutic formulation comprising
a therapeutic compound formulated with an enteric-coating, such that amyloid-related
disease is prevented or treated.
- 123. A method for preventing or treating amyloid-related disease in a subject comprising
administering to the subject an effective amount of a therapeutic formulation comprising
a therapeutic compound formulated with an agent that modifies the release of the therapeutic
compound, such that amyloid-related disease is prevented or treated.
- 124. A pharmaceutical composition for preventing or treating amyloid-related disease
in a subject comprising a therapeutic compound formulated with an enteric-coating.
- 125. A pharmaceutical composition for preventing or treating amyloid-related disease
in a subject comprising a therapeutic compound formulated with an agent that modifies
the release of the therapeutic compound.
- 126. A method of preventing, treating or inhibiting Alzheimer's disease in a subject,
comprising administering to the subject an effective amount of a therapeutic formulation
comprising a therapeutic compound formulated to significantly reduce or prevent gastrointestinal
intolerance, such that Alzheimer's disease is prevented, treated, or inhibited.
- 127. A packaged pharmaceutical composition for treating Alzheimer's disease in a subject,
comprising a container holding a therapeutically effective amount of a therapeutic
formulation comprising a therapeutic compound formulated to significantly reduce or
prevent gastrointestinal intolerance; and instructions for using the compound for
treating Alzheimer's disease in a subject.